Fully featured Heavy duty vari-flow applicator gun which easily switches between thrust ratios for optimal performance RAPID 12:1 thrust ratio for fast discharge & low viscous materials / POWERFUL 25:1 thrust ratio for controlled discharge & high viscous materials NON-DRIP SELECTOR for extended flow on long runs or for greater control on intricate applications, also ideal for working indoors or at height to avoid spillage ROTATING BARREL and comfortable rounded grip ensure maximum control and reduce fatigue QUICK RELEASE MECHANISM and hook end for easy cartridge change / Suitable for cartridges up to 400ml, Weight: 1.7196056436 pounds, Manufacturer: Roughneck