Features:??Fixed Speed Cruise Mode??Double-click the trigger button to automatically switch to the fixed speed cruise function, hold the handle to automatically glue.??Double Rod Drive??Push rob with thickened rubber pushing piece, more even and powerful glue output.??6 Gear Adjustable Speed??Shift not stuck, even thrust, 6 adjustable speeds allow to adjust different flow rates evenly and continuously as needed.??User Friendly??It's ergonomically designed handle helps easily grasped; The LED light will automatically turn on when you press the trigger, making it easy to work in dark places.??Wide Application??The dual caulking machine kit works with epoxies resin, acrylics and urethanes with 2 part cartridges that apply to panel bond, ideal for kitchen, bathroom, tank, door, window, sink, joint filling finishing and more.