The chart shows the equivalent shot sizes for each weight, and also the weight in grams ranging from 0.5g up to 4.5g.

Ten precision machine made brass weights in varying sizes.

The secret is the unique adaptor which is used in conjunction with one of the ten differing weights.

These are number 1-10 with equal shot along side each weight.

You simply choose which float you require, pick which weight matches the float you have chosen, and place onto the adaptor.