Our bathtub mat non slip is made of BPA-free PVC with a checkered backing for safety and durability Comfortable Support: This bath mat for tub non slip is 4 inch thick, providing soft and comfortable support for your feet Easy to Clean: These non slip shower mats are easy to clean, simply spray and rinse gently, the foam on top washes off easily Effective Drainage: With hundreds of small drain holes, our shower mat allows water to circulate, preventing water accumulation Multi-purpose Use: Our shower floor non slip stickers are not only for bathroom use, but also for use in other wet areas