This was delivered on a very cold day and sat on my porch for several hours so when I pulled it out of the box the plastic was very stiff! My daughter and I had to work at it to unroll it and then we used a space heater and her body weight and heat to flatten it!Now it's perfect though! It's exactly the right size for the space, my chair glides easily across it, the teeth grip and hold it in place so it doesn't slide around on my carpet and it lays flat. It feels very durable and wipes down easily! Great quality for the price!

This is the fourth chair mat I've ordered from Amazon (and from others) - and the first one that I liked and didn't have to return for a refund!I gave this chair mat five stars because this mat came delivered FLAT and undamaged in a full-size and sturdy cardboard sleeve, ready to plop down under my chair and get to work. It's firm surface makes rolling around in my chair a snap. It cost a little more than the others, but definitely well worth the price.The other competitors' floor mats I ultimately returned came tightly rolled up on a box, and were a hassle to unroll and get sort-of flat. The competitors' chair mat surface was soft and squishy. Worse, the other competitors' mats were difficult to roll around in my chair leaving my chair stuck in a divot in the plastic mat.This mat arrived flat, was easy to pull out of the box, install, and now my chair rolls around easily.

Overall this is working well for me so far -- a week or so.I had a devil of a time unrolling it. It did NOT want to unroll. And the underside is pokey.After getting it unrolled it still wanted to roll up so I placed heavy objects on both ends (I purchased the rectangle version).Once it became mostly flat, I started using it. It is placed on fairly low pile (~1/4") cut loop carpet on a typical pad over concrete. My office chair has 5 legs with dual wheels on each leg. It works well, but if I stay too long in one spot, it will make slight dimples. Being aware of this, I move the legs (rotate them just a little) every now and then.It hasn't cracked yet (I'm 200 lbs) and I hope it lasts a long time. It is SO much nicer than rolling on carpet. My previous mat was thicker, but after 15 years I think it became brittle and began to crack.

1) Keeps carpet clean2) Reliable to roll fancy town chair on without hitting carpet or sides of design3) You have to flatten it upside down for a day, so you will have six, eight, or ten things to straighten in a day. I used unpacked ammunition boxes, and it was ready this morning. It took 20 hours.4) It's Easy to clean. I'd rather clean this than spilled coffee and Danish off the carpet. I work from home, so this makes me more comfortable. Reasonable pricing, solid material. It's big. Measure carefully. Too big is better than too small.

This product arrived as expected in a cardboard tube. I was initially pleased that, after it warmed up, the plastic material rolled out flat as it should be. Using the product is another matter. That is that it is a huge disappointment. With just a few hours use, my chair wheels have already cut a set of tracks into the pad. You can see that in the picture I posted. It is now bumpy and hard to roll over. Very soon, this pad will be gone as I’m going to buy a glass one. The value is that I’ll soon get what I wanted and expected … a quality product! This one is not it.

It's doing the job it was designed for ... I think. My chair seems to get stuck every now and then. It could be the wheels (though they are inline skate style wheels), but I don't think so. I'm currently leaning to the thickness. It might be a little to thick and that makes it squishier, trapping a wheel here and there. I'm not seeing divets which is why I haven't ruled out my chairs wheels.

Excellent floor mat protector!Item as described.

This isn't going to be a comment on the performance of this mat as it's been less than a day since I received it, and, according to the enclosed flyer, it may take three days before I can use it. No, this is a comment on the horrible packaging of the mat and the 90 minutes it took for me to open the boxes and unspool the large 48"x60" mat. It's customer abuse. It makes the most complex IKEA assembly look like putting together a child's wooden puzzle.First off, I received a tall, brown, corregated box (7"x12"x58"). It bore no Amazon markings or Amazon tape so I assume the box was from the manufacturer. (I, of course, don't know that for a certainty.) I opened it. Inside was another tall, brown corregated box (5.5"x5.5"x48"). I opened it. Inside was the wound mat, curled up like a small rug or bolt of cloth. I took it out and Immediately tried to unwind it. It didn't open easily so I searched for tape or some other binding holding the mat so firmly wound. Nope. It was just super tightly spooled and not going to be unspooled easily.To be clear, I'm not talking about a soft, pliable sheet. No, as described on the site, this is a hard, 2.2 mm thick, "premium PVC" mat with 3 mm spikes. Irony alert: "The rolled up package is easy to carry," says the Amazon site. "But it is easy to flatten, just add as much weight as possible to the corners and it will flatten." The enclosed flyer adds: "Your mat will gradually regain and retain it's [sic] flat state. The could take up to 72 hours..."I won't describe in detail the improvised process I used to unroll the mat, only to say that it took about 6 inches at a time to unspool it, leveraging two small boxes to wedge against the roll to keep it from reversing and rolling back up while I employed octopus-like contortions to simultaneously position heavy objects on the mat and unroll it while kneeling or standing on the unspooled portion. All while those 3 mm spikes were ripping into me and whatever heavy objects I tried to use. The five-pound sacks of gardener's pebbles were no match to the stiff premium PVC. I wound up securing the four corners with two large tool boxes, a box of photographic equipment supplemented with a bag of coins, and the two-volumn condensed Oxford English Disctionary.So that's how things lie right now. The flyer suggests that the flattening process might be speeded up a bit by placing the weighted-down mat "in a warm room or near a sunny window." Well, it's 13-degrees here as I write this review; the heat's at full blast, and I'm still wearing a thick sweater here at the keyboard. Warm and sunny are relative, I guess, but I don't think I'm going to make a lot of progress on that front. I might, however, give my wife's hair dryer a try.Addendum: It's been two weeks now since I unspooled the mat and 10 days since I placed it. It's lying mostly flat, but about one-third of the total area--not permanently secured by the wieght of the desk and my occupied chair--remains noticeably bowed. The bow on leading (unsecured) edge is one-and-a quarter-inch off the carpet.

The mat is perfect. It fits great underneath the chair and desk.

Just the right size and sturdiness for my use case with a heavy secret lab chair in a carpeted room.

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Sturdy plastic. Just as advertised.

Very durable and steady stuck to the carpet.Strong and flexible.It is pretty big and come in one piece as it is.Good for work desk, giving a good smooth rolling surface for the office chair, while protecting the carpet underneath.Also easy to be move to entrance on a heavy traffic day - party.Could be wipe or mop clean with ease.Slightly pricey at £70.