Children will love to play with these sensory textured balls that light up and flash when they are bounced. Ideal for use in a sensory area or for throw and catch games as they are a comfortable size for young children to handle.Each ball has a different surface texture for inquisitive hands to explore.4 bright balls: purple pink yellow & clear each containing a colour LED which lasts approx. 1200 flashing cycles. 100 mm.As with all our sensory products adult supervision is required at all times.