A set of 4 reflective, iridescent balls for multisensory play. The stunning, iridescent surface provides a slightly distorted reflection which fascinates children and encourages descriptive language. The reflective surfaces change color in the light as children manipulate the balls. They are smooth and lightweight for small hands to handle. The balls are chemical-free, non-porous and easy to clean, which makes them ideal for all play environments. Sensory Color Burst Balls are made of durable, tarnish-resistant stainless steel. Sizes: 2.4" , 3.2" , 3.9" and 5.9" dia. Suitable for all ages.