SP 210 Round Spring Powered BB Impact Shower – Black, is a Projectile Shower which launches 210 BBs on impact, used to clear rooms and around corners. The shower holds up to 210 BBs, which are loaded into the bottom of the shower using an Airsoft Speed Loader. 6mm BB Do Not Included. The Shower is powered by Spring. This is perfect for those Airsoft Skirmishers who are looking for a great alternative to win in CQB arenas.