Each of these three, high quality silicone spheres features a unique design that mesmerizes the eyes, fascinates the fingers, and inspires the imagination. Meanwhile, chimes hidden inside sing beautifully with every movement, captivating the ears as they roll! Discover a new way to enliven sensory play. Spheres each measure 2.5 inches in diameter. Made of high quality silicone - BPA-free, safe for teething, dishwasher safe.