DESIGN: Efficient heat dissipation, effectively preventing burn-in. The button is automatically locked, and the switch button controls the switch of the function. NO LEAKING: Automatically return to the machine for discharging, and stop the automatic return to machine for discharging and return on the return journey to prevent the glue droplets from leaking. LONGTIME USE: Rubber push piece shock absorber protection piece thickened rubber sheet, which can increase the shock absorber and increase the service life of the push rod and internal gear. MATERIAL: The handle is made of ergonomic abs plastic, which is comfortable to use for a long time. The handle is made of ergonomic abs plastic, which is comfortable to use for a long time. WIDE APPLICATION: Wide range of application Suitable for balcony doors and windows, bathtubs, and air-conditioning holes. It is very suitable for caulking, filling, sealing and insulating small gaps. Specification: Material: Plastic Size: 43x37.5cm Color: As shown Voltage: 18/20V (2000mA) Charger: 21.5V 1.5A Working pressure: 280kgs Working current: 1A Glue rate: 4-setting Usage: Home DIY For: Glass Glue, Seam Glue, Sealant Size Chart: 43x37.5cm/16.93x14.76inch Package Includes: 1*Glass Glue Caulking Gun 1*Rechargeable Battery 1*Charger(US PLUG) 1*User Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!