Thick – It measures 1.2 inches thick. Inflating Design - This baby mat can be inflated with an air pump/simply your mouth, when fully inflated it can give your baby a decent cushion. Multiple Functions – It is perfect fit for LIAMST, TODALE, Fanbufan, YOBEST and EIH 50" x 50" baby playpen. And also it can be used as a baby crawling mat, travel play mat, dog bed mats, etc. Easy to Clean - Both sides are resistant to wear and tear. No more worrying about food scraps, drinks or urine. Rolled-up and Portable Design: with small package size when rolled up, you can take it anywhere with you with no problem. 50”x50” Inflating Play Mat for Playpen, 1.2 Inch Thick, Waterproof Fabric with Foam Interlayer, Provide Enough Cushion for Babies and Infants, Roll Up and Portable with Travel Bag (50x50 inch)