Product information:
Ability Training: visual, intellectual development, hands-on brain, grasping, sensory, hand-eye coordination, other ability training, interactive toys, hearing, parent-child communication, interest training
Color: D 5.5*4.5 Rainbow Spring, C 5.5*5 Rainbow Spring, B 6.4*6 Rainbow Spring, A 6.5*7.5 Rainbow Spring
Specification: Large/medium/small size
Applicable age: Youth (15-35 years old)
Material: Plastic/plastic