... /G0 certificate, highest industry standard!4) weight =0.25g 5) diameter = 5.95mm 6) Eco-friendly Materials ... for tight high performance barrels - model: GB3025W, 0.25g, 5.95+/-0.015mm, white; 3000 Rounds/Bag, ... 3000 Rounds/Bag, 20Bags/Carton- model: GB4025BK, 0.25g, 5.95+/-0.01mm, black; 3000 Rounds/Bag, ... 20Bags/Carton- model: GB4025GR, 0.25g, 5.95+/-0.01mm, green; 3000 Rounds/Bag, ...