... presion, seamless, roundness, polish 0.25g airsoft BB,Brand"GoldenBall"1) high precision, seamless, roundness, polish 2) Perfect spheres and no air pockets ... - model: GB3025W, 0.25g, 5.95+/-0.015mm, white; 3000 Rounds/Bag, 20Bags/Carton- model: GB4025W, 0.25g, 5.95+/-0 ... +/-0.01mm, white; 3000 Rounds/Bag, 20Bags/Carton - Carton size: 34X42X14cm - For use in higher end spring airsoft rifles,AEG's,gas ...