Stimulate visual, tactile, auditory skills with the SensaTrak! Each transparent vinyl tube is filled with colored balls that provde all kinds of sensory effects as they tumble through the brightly-colored chambers. Also, kids can learn their A-B-Cs and numbers by observing the colorful numbers and letters in each chamber! The slightest movement of the SensaTrak causes a diverse range of sensory and motor stimulation. Requires a power inflator. Measures 40" diameter and 34" width. Weight capacity 65 lbs. Latex free. For use by children ages 3 and up, under adult supervision.