Ningbo Chengyi Balls Co., Ltd., (brand name CYC, a member of TBP Group), is a manufacturer of plastic balls, such as Airsoft BB, 6mm BB, 0.2g BB, BB bullets, ammo and pellets. Ningbo Chengyi Balls Co., Ltd. is a professional manufacturer of the highly-praised line of extreme precision 6mm Airsoft BB. With vast technological experience and know-how in the specialized production of spherical shape objects, we make the products top choices for airsoft players around the world. Ningbo Chengyi Balls Co., Ltd. is a cutting-edge leader in the Airsoft BB market, and will continue to innovate and bring the highest-grade Airsoft 6mm precision BBs to the Airsoft community. Ningbo Chengyi Balls Co., Ltd. offers the full line of BBs: 0.20g, 0.23g, 0.25g, 0.28g, 0.30g, 0.32g, 0.36g and 0.40g. Biodegradable 0.20g, 0.23g and 0.25g BBs are available for the eco-friendly Airsoft shooting. - Perfect sphere shape & smooth surface - Made of high strength/tough materials - No external pitting on the BB - Seamless (no visible seams) - No visible internal air bubbles/pits - Significantly stable flight characteristics, less drift by wind & shoot straighteners - Suitable for all Airsoft Guns - AEG, Pistols, Rifles and others that use 6mm BB. Our parent company (TBP) produce Super Precision Ball Bearings and One Way Clutch since 2000. We will do better for you.