Don't fall off the log. Kids will have hours of active and imaginative play time with these nature-inspired pieces. The set includes 15 nature-shaped mats, which have real images heat pressed onto them: 8 leaves, 3 log cross sections, 3 rocks and 1 log. The mats are made with non-slip, black rubber so they won't tear or lose shape easily. Sizes range from 36.2" L x 7.1" W for the log and 9.4" L x 7.9" W for a leaf.