Roll, bounce, toss, and discover! Each of these three, high-quality silicone spheres features a unique design that mesmerizes the eyes and captures the imagination. Hands of all ages reflexively reach, grab, and explore their fascinating, rubbery textures before inevitably rolling them along a table or floor. And when they do… Ears perk up. Minds are soothed yet excited. Curiosity and wonder unravel as the charming chimes hidden inside sing beautifully with each and every movement. Enliven your child's playtime expeditions with the cleverly captivating Sensory Rollers. Made of high-quality silicone. BPA-free, safe for teething, and dishwasher safe. Spheres measure 2.5 inches in diameter each. Gender: unisex.