*MaterialMatt /Gloss/Laser PVC, TPU,PU, Rubber
*Bladder：Rubber,Butyl
*Size1 diameter:14cm, circumference:40-42cm,weight:140-160g
*Size2 diameter:16cm, circumference:48-50cm,weight:180-200g
*Size3 diameter:18cm, circumference:56-58cm,weight:280-300g
*Size4 diameter:20cm, circumference:64-66cm,weight:320-360g
*Size5 diameter:22cm, circumference:69-71cm,weight:380-420g