High-density EVA foam for stability when exercising, foam material provides a firm cushion to lessen the impact of bodyweight exercises on your joints.Protective Flooring:The mats are made of high density EVA foam material. Sturdy enough while giving you necessary cushion,nd safeguard your floor from scratches, and dents.Waterproof and Easy to Clean: The puzzle piece mat can be cut to fit for custom size. Lay single piece or multiple pieces and it fit almost anywhere.and the foam easy to clean.Easy to Assembly:The Exercise mat can be connected or disassembled within 5 minute,Trust , and safe crawling pads in playrooms for infants, toddlers and kids of all agesMulti-Prupose:Water-proof and noise-reducing features make the puzzle exercise mat easy to clean.Also works great for kids or baby play room and areas around that need a little extra cushion and safety - can work almost anywhere (garage, basement, kitchen or office as a standing mat)size:30x30x1.2cmMaterial:EVAcolour:blackPackage Contents:12 * Exercise MatOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.