High Quality Construction Tools Sealant Manual Glue Press Caulking Gun Silicone Cordless Lithium Li-ion Battery Accumulator Rechargeable. Variable Speed Control: Features a variable speed dial with feeding speed ranging from 0.8 to 8mm/s. Anti-Drip Mechanism: Equipped with an anti-drip mechanism to prevent messy leaks during use. Cordless Lithium Power: Powered by a 20V Li-ion battery providing up to 380 cartridges per charge. High Pushing Power: Delivers a maximum pushing power of 2500N for efficient caulking. Customized Design: Offers full customization options including samples, designs, and flexible adjustments. OEM/ODM Services: Provides both OEM and ODM services for private branding and custom manufacturing. 1-Year Warranty: Comes with a comprehensive 1-year warranty for peace of mind. Compact Lightweight: Designed with a compact and lightweight structure for easy handling.