Four balls of varying sizes and dimensions. A stripy ball approx 9cm diameter, which squeaks when squeezed. A rattle ball measuring approx 10cm diameter which can roll like a wheel and features open holes and a rattle in the middle. A third ball with bumps on the surface is soft and squeezable, and lights up when thrown. The fourth ball is spiky with embedded patterns, which is perfect for chewing on as well as throwing around. These are perfect as sensory toys for those with special needs.