The Makita GN900SE First Fix Gas Nailer is a cordless clipped head nailer developed for a wide range of framing applications. It uses fuel gas as the power source to provide freedom from hoses and compressors and is fitted with a LED indication lamp, with battery power warning and trouble detection functions, for convenience of operation and repair. The nailer is depth adjustable for a wide range of applications. Specification Battery Type: 7.2 Volt Li-ion. Gas: 80ml Cartridge/Butane Propane. Magazine Angle: 34°. Nail Length: 50-90mm. Nail Type: Clipped Head. Magazine Capacity: 44.