These weights are designed to attach to the inside or outside of the wheel rim in order to achieve the correct balance. The difference is in the clip sizes. Knock on weights for steel wheels tend to have a smaller clip with a thinner profile to account for the slimmer profile of the steel wheel. Alloy wheel weights are similar, but have a wider, more forgiving clip for the wider alloy wheel rim.
Available sizes: 5g,10g,15g,20g,25g,30g,35g,40g,45g,50g,55g,60g.
