Koonmi Tempered Glass Chair Mat for Hardwood Floors Carpets 42 x 48 Grey Heavy Duty Office Floor Protector

Made from solid tempered glass. Much stronger than the typical plastic mat. Will support significant weight without bending or warping. Chair rolls very smoothly across the surface. Will shift slightly on carpet over time from chair rolling over the mat. Cleans easily. Highly recommended. Read more

It is too smooth for any chair to roll, making it a true glass surface. I thought my chair wheels which tore down a Polycarbonate chair mat into pieces under an year will make marks on this mat - no marks even after 3 days of heavy use. It is heavier and thicker than regular mats. Arrived as a heavy one piece glass well packed. Its quality is unparalleled. Value for money? I believe it is going to last for a long time - but will update in a year (the life of my previous Polycarbonate chair mat). Its stays put on carpet (pile loop). It definitely protects your carpet/hardwood. I am using it on the carpet and it did not move a bit in 3 days. The Polycarbonate with spikes moved all over the place in 3 days and I need to physically adjust. Read more

This tempered glass chair mat is extremely useful, allowing smooth and effortless movement of the chair while protecting both floors and carpets. The quality of the glass is outstanding—it does not scratch and has a solid thickness that prevents it from breaking easily. It’s both functional and elegant, adding a premium touch to any workspace. I highly recommend this product. Read more

We have been using our mat for about a month now with no problems. I like how much better chair rolls across this glass mat. Very low-profile mat. Many times, better than old plastic mats. Read more

Overall (4/5): I thought this product was good. I haven't utilized the customer service. My office chair was hard to move around in on the carpet, but I've had a plastic mat that wore out and didn't want to experience that again so I chose a glass mat. The mat sliding and the green tint lowered the rating, otherwise, this was a good product. Functionality (4/5): It has held up so far (3 months) and it feels that it will for a good long while. The chair rolls much better after replacing the plastic chair wheels. I don't recommend rolling plastic wheels along glass. The stickers on the bottom of the mat don't work that well. I even stacked two on top of each other and the mat still slides toward the feet of my desk. The carpet isn't tall either, so that part I was disappointed about. It is fairly heavy and wide but I was able to carry it alone. Appearance (4/5): The box is marked clear/transparent, but there is a tint of green to it. It will protect the floor and not discolor the carpet unless there is a chemical that takes years to disperse. Read more

Arrived quickly and was securely package. Huge upgrade from a plastic mat which was cracking after 2 years of use. Chair rolls easily and mat does not move. I have bought a second one for my wife. Read more

Very smooth rolling with my wheeled office chair. Heavy-duty and seems as though it will last a very long time. I have both the grey and clear versions, and recommend that you install the included grabber dots if you are using it on carpet, because it will slide bit by bit as you use it if you don't. Read more

I only discovered these were a thing through a reddit thread. I was constantly buying a new plastic mats to put over my high pile carpet once a year. Every year, over that time, the mat would get cracks in it. This glass mat is an absolute game changer. It's smooth to role on, it can handle a ton of weight, and I cannot see any reason this isn't going to last me years and be the best value for me in the long run. Oh and it looks great! Spend the extra money on glass mats if you have a high pile carpet and stop it with the plastic mats! Read more