Ages 10 months to 4 years Each Whirly Squigz is made of 100% high-quality silicone that's colorful, pleasant to touch, and safe for teething. Hold them, explore their unique contours, chomp on them and let them soothe sore gums... Then, stick them to any smooth, flat, non-porous surface - like a bathtub wall, a tabletop, or a window - give them a spin, and... WHOOSH! - Around and around they go, faster than the eye can see!