Origin: CN(Origin) Material: Rubber Function: Legs Size: Other Model Number: D1156 Model Number: PVC Inflatable Half Yoga Ball Style: Point Massage Material: PVC Diameter: about 16cm Color: blue, gray, green, red, pink, yellow, purple, orange type1: Can stimulate the body acupuncture points. type2: relaxing muscles and tendons to promote blood circulation. type3: Enhance children's color discrimination ability, develop children's pr type4: It can be placed on the floor, seat or foot pad to use. type5: It has inducement and training for autistic children. type6: Soft and comfortable to use, portable and convenient.