Elite Auto Parts supply a number of wheel balancing weights. Here we have

Cip-on series
Lead coated 0.25oz. 1.5oz, 1.5oz,
Steel coated 5g, 10g, 15g, 20g, 25g, 30g, 35g, 40g, 45g, 50g, 55g, 60g,
Zinc coated 0.25oz, 0.5oz, 0.75oz...

Stick -on /quick stick series
Lead strip size 3 oz, 0.25oz/increment
Zinc strip size 3 oz, 0.25oz/increment
Fe strip size 3 oz, 0.25oz/increment And so on.