8g has a 5/8" diameter and weigh 1 gram each 6g has a 11/16" diameter and weigh 1.6 grams each 4g has a 3/4" diameter and weigh 2.8 grams each 2g has a 7/8" diameter and weigh 4.5 grams each 0g has a 1" diameter and weigh 6.7 grams each 00g has a 1-3/16" diameter and weigh 12 grams each
The insertion gaps vary from 3mm-5mm.
These are all hand made and matched the best they can be. Each piece will vary a bit as it's impossible to have two identical pieces.