Features: 1) Brand:YZ 2) Material:Steel 3)Application: Bicycles, electric cars, balls Features: 1) Dimensions: 30 X 380mm 2) ... ,folding bicycle,moutain bicycle,city bicycle. and parts of bicycle and mountain bike such as:chain-wheel and crank,bicycle saddle,middle axle,basket ... ,air pump,hub spindle,head parts,free wheel,brake cable,chain,brake lever,brake shoes,tyre and tube,mudguard,side stand,chain ...