TFH Tactile Walkway features 7 wooden frames, each with a different color and texture inside for every step. This unique walkway adds new, exciting dimensions to walking and features the surfaces made from astroturf, felt, polyurethane, foam, bobbles and ribbed rubber. Each frame measures 21 L x 14 W x 2-3/4 H inches and feature non-slip rubber feet on the bottom.