The slide whistle is a classic musical toy for a youngster who likes to experiment with sound. From one end of the scale to the other and slow or fast, children learn music best by being the one making it. Colorful, durable and perfectly sized for a toddler. Helps children understand hand eye coordination, appreciation for rhythm and music, and sensory perception. Finished with completely non toxic, child friendly paints and finishes. Dimensions 4.5L with slider pushed in Ages 12 mths