Constructed of 4 Panels: each 4" x 2.5" x 2" * Special characteristic: have a hand carry belt, because of this, you can go anywhere with the mat * Velcro on three edges to connect end to end AND side to side * Color: Multi-color;Material: EPE Foam (inside) + Eco-Friendly PVC (outside) * Expand Size: 4"x10"x2" ;Folding Size: 4"x2.5"x8"; Panel Size: 4"x2.5"x2"