1. The projected rainbow circle with lights is more fun, more changeable, better looking, and more magical 2. Stimulate babys color vision 3. It can change a variety of patterns and a variety of play methods, which is beneficial to exercise the flexibility of the babys hands 4. The automatic contraction function of the rainbow circle can train childrens hand coordination ability, and the colorful colors are also very popular with children. 5. Use 3 small button batteries 6. Dimensions: 5.2 x 5.5 cm
