1,Material: Zn(zinc) 2,surface treatment: plastic-coating 3,Sizes: 5-60 grammes wheel Balance Weights The weights for steel rimsMaterial: Zn(zinc)Surface treatment: plasic-coatingWeight sizes: 5,10,15,20,25,30,35,40,45,50,55,60 grammesPackaging units: 5-30grammes, 100pieces/box 35-60grammes, 50pieces/boxHook width: 5g 10mm; 10-15g 15mm; 20-30g 20mm; 35-60g 25mm