Set of 4 multi-coloured balls, robustly constructed from hard wearing stainless steel. The colour burst effect provides a spectrum of bright metallic shades on each ball, with a fascinating reflection that distorts like a fish-eye lens to give children an intriguing view of themselves and their surroundings. The stainless steel will warm to the touch to encourage further sensory discovery and the tough lightweight material makes the balls easy for even the youngest children to handle. The stainless steel is an ideal material for use in sensory play resources, as it is chemical free, non-porous and naturally bacteria resistant. Balls measure 6cmD, 8cmD, 10cmD and 15cmD. Birth+.