0.25g Biodegradable High Grade Airsoft ammo Proball High Quality airsoft bbs 1KG (approx) in a resealable bag 0.25g ]25 bags per box Made from PLA (Corn Starch and other natural products) 5.95 +/- 0.01 tolerance Double polished 0-.25g proball biodegradable 1kg bags High Quality airsoft bbs by proball