KEY2FUN

Adjustable Dumbbells 22 33 44 66 88LBS Free Weight Set with Connector 4 in 1 Weight Set Used

4.0(7)
$318.56$4099.00
sizeS

1080+ bought in the past month

About this item

  • 【4-in-1 Deluxe Dumbbell Set】: The KEY2FUN adjustable dumbbell set provides dumbbells, a barbell, kettlebells, and a push-up rack. It enables progression from beginner to professional fitness levels, with adjustable weights allowing precise targeting of muscle groups and training intensity
  • 【HDPE Eco-Friendly Material】: Crafted from premium HDPE eco-friendly material, this dumbbell set demonstrates 50% greater wear resistance than PP material in laboratory testing. Their hardness and texture are equally impressive, making them a safe, eco-conscious choice. They represent both quality and a long-term investment
  • 【Dual-Nut Design Enhances Safety】: KEY2FUN dumbbells feature a dual-nut anti-slip mechanism, offering significantly greater safety than standard single-nut dumbbells. This ensures zero wobble even with heavier weights, allowing you to focus fully on your workout and immerse yourself in your training
  • 【Expanded Weight Configuration】: Dumbbell plates feature a detachable design, allowing individual dumbbells to be adjusted from 5.5 lbs to 44 lbs, kettlebells from 5.5 lbs to 22 lbs, and barbells from 5.5 lbs to 88 lbs. Tailor the weight configuration to your training intensity, enabling systematic workouts with a single dumbbell set
  • 【Non-slip Dumbbell Handles】: The handles feature a premium PP material surface with an anti-slip textured design, enhancing grip friction for superior control during workouts. This facilitates more effective arm muscle training
  • 【Detachable Barbell Bar】: The barbell connection bar is crafted from stainless steel and premium sponge material. The non-slip sponge conforms snugly to the neck during use. Exceptionally soft and breathable, it offers outstanding sweat absorption, ensuring sustained comfort throughout your workout
  • 【100% After-Sales Assurance】: KEY2FUN is committed to delivering premium service and products, with all items rigorously tested and selected. Should you have any queries, please do not hesitate to contact us. We shall respond to your message at the earliest opportunity upon receipt
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Product details
BrandKEY2FUN
ColorBlack
Item Weight88 Pounds
MaterialPolyethylene (PE)
Special FeatureAdjustable Weight, Non-Slip
Technical specifications
brandKEY2FUN
colorBlack
item_weight88 Pounds
materialPolyethylene (PE)
special_featureAdjustable Weight, Non-Slip
product_dimensions21.46"L x 10.04"W
styleAdjustable
handle_materialPolypropylene (PP)
set_nameKEY2FUN
number_of_items4
manufacturerKEY2FUN
item_package_dimensions_l_x_w_x_h21 x 10.5 x 9 inches
package_weight43.09 Kilograms
item_dimensions_lxwxh21.46 x 10.04 x 10.04 inches
brand_nameKEY2FUN
part_numberHC-YL
size88 pounds
best_sellers_rank#101,821 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #357 in Exercise & Fitness Dumbbells
date_first_availableOctober 25, 2025

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Customer reviews

4.07 ratings
  1. 586%
  2. 40%
  3. 30%
  4. 20%
  5. 114%
★★★★★

Well-made

tianlaluJanuary 5, 2026

I'm absolutely delighted with this set. It's a breeze to assemble and incredibly easy to store. The entire family can get a workout with it, and the craftsmanship is superb – it feels substantial and well-made. Even during high-intensity training, the dumbbells remain stable and offer a comfortable grip. I've already recommended it to friends. A truly excellent product! Read more

★☆☆☆☆

Cheap Weight Set and Missing Parts

User26December 30, 2025

I ordered the 88lbs set and it arrived with several parts missing. I did not receive any locking nuts for the barbell, I'm missing a kettlebell handle as well as the kettlebell weight holder. Without the locking nuts this entire set is unusable. From what I did receive, none of it warrants the high price. The handles feel cheap, the barbell is uncomfortable and sized for a child, and the weights feel somehow cheaper than the handles. When the barbell is loaded and your try to perform a squat, these is no place for your hands to grip the bar comfortably. The sizing of this kit is more inline with that of a child and not an adult. The handles are easy to assemble and the kit can allow for an effective workout experience, but it should not be priced as high as it is. I'd highly recommend looking for other options than this weight set. Read more

★★★★★

Adjustable Dumbbells/Kettlebells/Short Barbell Set with Weights

TonyDecember 23, 2025

This can be ordered in many varieties, I ordered the 88lb set. I like the variety of exercises you can do with this weight set. It is great for beginners or anyone just trying to stay in shape with limited space. You can combine the two dumbbells with a screw on connector to make a short barbell which comes in handy for bent over rows, cleans, overhead presses, curls, squats, and deadlifts. The kettlebell handle is a nice bonus since you can do lightweight kettlebell swings with it. The best part of the kit is that you get a pair of dumbbell handles. The dumbbell handles can be used for curls, reverse curls, triceps extensions, bent over rows, hammer curls, bench press, pullovers, dumbbell flys, military press and shoulder raises. Assembly is easy just time consuming (especially if combining the two dumbbells with the connector to make a short barbell). Because the barbell is so short it is not rackable. I wish the kettlebell handle was longer because it cannot hold very much weight at all (only up to 22lbs). The barbell can hold up to 88lbs and the dumbbells which are the most useful part of these can handle up to 44lbs each. I like that the weights come in three different weight increments I only wish they were not so tall since they are fatter than traditional weight plates and come in non traditional weight increments. The barbell is nicely padded and the dumbbells and kettlebell have a comfortable grip as well. I like that the weights are plastic coated which means they cannot rust. Read more

Review image 1
★★★★★

Tough made weight set for both men and women

ttbDecember 22, 2025

This is an adjustable exercise weight set. It has two bars for kettlebells, two bars for dumbbells, and one longer bar for chest area. Then there are eight plastic connectors. There are twelve combinations of 22/33/44/88 pounds of weights. There are also very basic instructions on both how to assemble it and a few exercises. Assembly it was simple. If you have ever put weights on a bar you can do it. The equipment is made of polyethylene. Each handle are textured, so there are no slipping of hands. Mine came in a heavy box and I had to do is assemble it to my liking. Construction of these weights are excellent. The insides are made with concrete and iron. You can actually feel the difference over those weights which have sand in them. I'm rating this weight set an 5. This weight set is made for both men and women. It has enough weights for many combinations of exercises. This set has the ability for the long bar, dumbbells and kettle bells to use. This weight set is made to last a long time with many uses. Read more

★★★★★

Game Changer for Home Workouts!

LisaDecember 17, 2025

This is my second time ordering an adjustable weight set (ironically, almost exactly a year apart), and I continue to love the versatility they offer. Adjustable weights are perfect when you're short on space—you get options for both dumbbell and barbell exercises without needing a full rack of equipment. What really sets this kit apart, though, is the adjustable kettlebell—I’m a huge fan of kettlebell workouts, so this feature is a total game changer. Plus, the push-up handles on the tops are a smart bonus! It’s a compact, multifunctional set that fits a lot of training options into one system. Read more

★★★★★

Perfect for my home gym

cjDecember 17, 2025

This adjustable dumbbell set is ideal for beginners. Its weight can be gradually increased from the lowest to the highest setting, allowing your body to adapt comfortably. The design is straightforward, yet the overall build quality is commendable. If you prefer not to go to the gym, this is the perfect choice for home workouts. Customer service was also very patient, responding promptly whenever I had queries. Highly recommended!! Read more

★★★★★

Perfect choice within budget!

CustomerDecember 17, 2025

I'm thoroughly satisfied with this dumbbell set. 1. Price-wise, it sits at a mid-range level overall, which I believe falls within most people's acceptable range. 2. Regarding quality, although it's plastic, after careful observation and comparison, this plastic material appears more robust and durable than other products. The craftsmanship is also more meticulous, suggesting it should last a long time. 3. Regarding the product structure, it comes with two nuts. This proves highly beneficial—initially, I attempted using just one nut. After several sets of exercise, I noticed it loosened. Using both nuts provides excellent stability. Overall, I award it 5 stars. For the price, this product offers exceptional value for money, with quality far exceeding its cost. I shall continue using it and will provide follow-up reviews. Read more

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