6mm 0.20g airsoft BB Bullets

0.20g airsoft BB,Brand"GoldenBall" 1) high precision, seamless,roundness, polish 2) Perfect spheres and no air pockets! 3) ISO 3290-2001 G1 /G0 certificate, highest industry standard! 4) weight =0.20g 5) diameter = 5.95mm 6)Eco-friendly Materials and Mineral used 7) color = white, light blue, black, green, or others 8) Designed for tight high performance barrels - model: GB3020W, 0.20g, 5.95+/-0.015mm, white; 4000 Rounds/Bag, 20Bags/Carton- model: GB4020W, 0.20g, 5.95+/-0.01mm, light blue; 4000 Rounds/Bag, 20Bags/Carton- model: GB4020BK, 0.20g, 5.95+/-0.01mm, black; 4000 Rounds/Bag, 20Bags/Carton- model: GB4020GR, 0.20g, 5.95+/-0.01mm, green; 4000 Rounds/Bag, 20Bags/Carton- model: GB5020W, 0.20g, 5.95+/-0.01mm, white; 4000 Rounds/Bag, 20Bags/Carton-Carton size: 34x42X16cm- For use in higher end spring airsoft rifles,AEG's,gas airsoft pistols,or higer. ps: 6mm airsoft BBs, include 0.12g,0.20g,0.23g,0.25g,0.28g,0.30g,0.32g,0.36g and BIO-BB series etc.