Activity and crawly mats are different sizes and shapes. Vinyl covered nylon mats easily wipe clean and great for school age activities. Multi-purpose mats for all ages. Shielding from non-hygienic surfaces and serving as a gentle. Made from 1 in. thick virgin foam. Provides hygienic activity surface. 52 in. L x 52 in. W x 1 in. H. Play is a child’s most important work and The Children’s Factory continues to be the World Leader in Soft Play.