BestMassage Folding Gymnastics Gym Exercise Mats 4'x6' Stretching Yoga Mat High-density, 1.5" thick firm white high density EPE eco-friendly foam Also it is perfect for teaching basic gymnastics and exercises to kids You will never feel inconvenient to go outdoors with it Velcro on 4 edges to connect end to end and side to side Expand Size: 4'(W) x 6'(L)x1.5"(H) Folding Size: 4.5"(H) x 48"(L) x 24"(W)