D'Addario

DAddario Flex Lock Strap Blocks - Locks Straps In Place - Protect Your Instrument with No Modifications or

$4.99$5.95
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About this item

  • PROTECT YOUR GUITAR: D'Addario Flex Lock Strap Blocks–protecting your instrument and your performance. Turn your favorite guitar strap into a locking guitar strap.
  • NO ADDITIONAL HARDWARE: Affordable strap lock solution without the need to replace any hardware. Strap security at a low cost without needing to mod your guitar.
  • NO MODIFICATIONS: Without need of modification, the Flex Lock Strap Block clips onto your guitar strap to prevent your strap from releasing accidentally.
  • EASY TO ATTACH: Snap on top of any Guitar Strap for a secure fit
  • D’ADDARIO ACCESSORIES - D’Addario Accessories (formerly Planet Waves) has been leading the industry in innovative and problem-solving products that serve musicians worldwide.
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Technical specifications
item_weight0.352 ounces
product_dimensions3.94 x 3.94 x 1.97 inches
item_model_numberPW-FLSB-04BK
best_sellers_rank#161 in Musical Instruments ( See Top 100 in Musical Instruments ) #1 in Guitar Strap Locks
date_first_availableAugust 28, 2023
body_materialRubber
color_nameBlack
material_typeRubber

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Customer reviews

4.71,290 ratings
  1. 588%
  2. 413%
  3. 30%
  4. 20%
  5. 10%

Customers say

Customers find the strap blocks work well at keeping them in place and appreciate their ease of installation, with one noting it takes just 5 seconds to mount and dismount.

★★★★★

Great product.

BillFebruary 28, 2026✓ Verified purchase

Simple and effective Read more

★★★★★

A simple little must have item

Troy M.February 28, 2026✓ Verified purchase

These are cheap insurance to make sure your strap does not pop off. I recommend these with the little tab on them. It makes them way easier to install or remove. They fit perfectly on a Stratocaster and I have no fear that they will pop off. I don't think I'd go flinging the guitar over my shoulder but in normal use they are more than acceptable. Guitars are expensive. These are cheap. They seem durable but I leave them on. They would probably stretch out if you installed and removed them on a daily basis but I see no good reason to do that. Read more

★★★★★

Good price, works well.

samuel biskinJanuary 5, 2026✓ Verified purchase

A good strap lock for any instrument. Good price too. Good if you don't want to replace the strap button. Read more

★★★★☆

Easy to remove and apply--Good?

RobertJuly 28, 2025✓ Verified purchase

The little tab helps to remove them if you need to exchange to another guitar. The rubber is soft and easily removed and applied. I'm not sure that's good. But it's designed to be removed and reapplied, so it makes sense. However, for a strap lock, I'm not sure it's the best design overall. Read more

★★★★★

Excellent strap locks

Katrina LaMarDecember 25, 2025✓ Verified purchase

Fanatastic strap locks. Very functional and practical. Super easy to install Read more

★★★★★

work just fine.

L. HamiltonFebruary 11, 2026✓ Verified purchase

These work fine, I have them on my SG and they haven't come off. Read more

★★★★★

Unbelievable quality and performance for the price

BenniOctober 3, 2025✓ Verified purchase

Over the past 37 years I have tried many different strap locks and some of them are fantastic but expensive and some of them have a short lifespan and are just as expensive. Strap locks are a must especially if you're still playing live. Back in 1992 I had just purchased my first Gibson Les Paul standard. My band was doing a sound check in a very small Club and the strap broke sending my Les Paul crashing off the stage and onto the floor. The whole place got dead quiet and luckily there was no damage to the guitar, picked it up and it was still perfectly in tune but the scare was enough. I may not play live anymore but strap locks are still important. I finally gave these a try and I'm Blown Away by how easy they are to install and the end product. Read more

★★★★★

Keep your old straps

Robert HasegawaJuly 31, 2025✓ Verified purchase

Open mic at Dobbers Bar. Strap disconnected from the rear end of my new best AIO guitar. Damage avoided because I was sitting. Got these rubber keepers. Easy to use, brilliant simple design, cheap price. Keep your eight pound guitar from hitting the floor. Old straps dry out and get loose. These fix that. Read more

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