Round stress ball, bounce, throw or squeeze this round stress ball. Stress relievers vary slightly in density, colour, size and weight due to mould process which may prevent precise and uniform imprint. Imprint may break up. No half-tones. Material: PU foam. Size: 60mm Diameter. Weight: 28 gram. Colours: Black, Blue, Lime, Magenta, Orange, Purple, Red, Royal Blue, White, Yellow. Print Area: 30mm x 18mm. Production Time: 10-12 Working Days.