Made of high quality ABS plastic, solid and durable, high security that makes this incredibly durable. No CO2, propane or green gas needed! Wide spread and range with 6mm BBs, with maximum capacity of approximately 130 rounds Simple design makes this airsoft shower easy to use. Simply unscrew the Airsoft shower cover, pour BBs into Airsoft shower, and screw the cover back on. After that just pull the pin when you're ready to lob it at your opponents. The Airsoft shower is great for taking out multiple players in a room You can also use water gel BBs and other projectiles 5 to 8mm in diameter