The Infinity 0.25g biodegradable airsoft BBs are precision 6mm BIO BBs from Taiwan that are highly polished and seamless BBs for 6mm airsoft rifles and airsoft pistols. Their ball bearing quality precision gives the flight path greater accuracy and consistency. Our BIO BBs are made from PLA (Polyactic Acid), which is recyclable and compostable thermoplastic derived from a renewable, earth friendly resource, such as corn starch. The Infinity airsoft BIO BBs are packaged in a 1 kilogram resealable bags. We recommend our Valken M4 Magazine Style BB Speed Loader for use with Infinity BBs when loading mid-cap magazines.