Practice is essential for any player, regardless of experience level. The Lancer Tactical .25g Airsoft Ammo BB's are designed for professional competition level play. The 5,100 count plastic .25 gram 6mm BBs are perfect for various types of shooting, that includes tactical gaming so that accuracy can be improved. Most importantly the Lancer Tactical Bio Series is Biodegradable making them perfect for match play for the discerning gamer.