• Easy to use and reset; very low cost per use with a robust design for long life
• The whole body Made of high-quality aluminum alloy, it is not easily damaged even if dropped from your hands
• Gas Do Not Included（POWER:134A / R290 only）
• Fits most 40mm grenade launchers using propane or green gas.It is best to load 1 NERF sponge ball, and you can also install more small-sized NERF Rival balls or NERF Darts
• Package contains: 1 Grenade Shell, 2 sponge balls（Reusable）