RevTimeDIY Interlocking Rubber Exercise Floor & Mats 20"x20"x1/4" Puzzle Gym Mats for Garage Gym, Treadmill Mats, Fitness Floor (Pack of 6 Tiles with 10 Edge)

They really worked great on flat surfaces!

First off the tiles seem to be very good quality and you could say worth the price. The problem comes with the title. It says there are 6 packs leading one to believe that there are multiple one in these six (packs). A question answered by RevTime even says there is 6 in a pack so logically you would assume that there is 6x6packs making 36 pieces all together but there is only 6 in the entire order. They need to fix. 3 out of 5 without a misleading title it would be a 4/5 out of 5.

Bought one set. It was decent so I bought a second. Evidently in the 3 weeks between my orders they decide to retool the product and made a new pattern. The old ones do not work with the new ones but they didn't change the name or the product number so it all shows up the same.Fine. Got 2 sets of the new ones - of the 12 panels only 8 work together. The other 4 are about 1/16" off which means they don't link together without rising up. And they don't align with the trim at all. 2 places it difference is so much I've have to hack the trim apart to make it fit.This stuff is garbage. Stay away.

Overall they get the job done but there are a handful of places where the tiles don’t fit together well so there are weird 1/4 inch gaps that collect dust and dirt.

Giving 1 star for all the trouble with these mats... buyer beware that Revtime has two versions in inventory they send out. The old model and new do NOT interlock. You may get mixed boxes of what is sent. Not to worry, I just kept returning and repurchasing until I received 4 matching boxes.... shipping was free for me, but such a hassle to get my gym flooring set up!