Publication details: Rainbow PebblesEdition: Note: Adult supervision required. Choking hazard for children under age 18 monthsDescription: This play set features 36 stacking and matching plastic translucent pebbles in 3 shapes and 6 colors to provide practice to develop tactile, matching, and sorting skills. The sizes of the individual pebbles range from 1.6"L to 3"L , and an activity guide is included. Use these pebbles for play on a light table or light tablet to enhance their colors and make an engaging play activity for children of all ability levels, including those with vision impairments. Safe for ages 18m+Online resources: