2000 count, .20g, biodegradable 6mm airsoft BBs – a great alternative for indoor and outdoor target shooting and tactical gaming. Biodegradable BBs meet the demands of airsoft fields and tactical skirmish events with environmental requirements. They are seamless, accurate and leave no long lasting clutter on the playing field. Made with P-Life™, and patented OXO biodegradable compound, they will begin to degrade within 45 days under favorable environmental conditions.