S-Thunder pressure activated landmines either shoot water or smoke powder with an exploding sound. Easy to maintain and operate, the IGG series utilizes S-Thunder's patent pending technology to offer a realistic simulation of an authentic battlefield experience. Operated by Top Gas / 12g CO2 cartridge To used with a 12g CO₂cartridge to ensure MAXIMUM EXPLOSIVE EFFECT Great entertainment production at War Game play Contain a safety device that it will not blow yourself and your teammate up when you placing the mine. Explosive effect are great ! To used with a 12g CO2 cartridge ,it blow 70db Volume And have 2.5m cubic effective range , it mean your enemy will be splashed Hole body by eco-color powder Durable & reusable for War Game Play Weight of Filling: 16g~30g Size: 16cm x 10cm For condensed gas, the use of S-Thunder's Condensed Gas Cylinder (STNDR-X004), is recommended (Sold Separately) See S-Thunder official video: VIDEO