This play mats are both functional and design forward. They are ultra cushioned, non toxic and top the safety charts. From tummy time to craft time, these play mats grow with you as your kids grow. Play with pieces mats are made from XPE, a non toxic, anti microbial, hypoallergenic and waterproof alternative to traditional EVA foam that tops the safety charts and is ultra lightweight. This is also a noise and shock absorbing mat! The play with pieces play mats meet all North American and European safety standards. How to clean this mat? Simply wipe clean with a damp cloth. Just avoid abrasive sponges and chemical cleaners as they may damage the mat. Safe to use also even for outdoor activities! Just avoid expoing it to direct sunlight.