... , seamless, roundness,polish. 0.20g Trace BB1) Glow in the Dark, Great fun and excitement, high precision, seamless, roundness, polish ... 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 etc 6mm 0.20g trace BB ...