Dripless and no mess design - On/off switch prevents drips and waste, helping you achieve a clean, precise application every time with no mess to clean up. High-power 18:1 thrust ratio - 18:1 thrust ratio provides strong, consistent pressure for medium-viscosity sealants, ensuring smooth application with less effort for all your sealing and caulking needs. Effortless control - Designed for seamless caulking and sealing around corners, curves, and tight spaces to maximize precision. Built-in cartridge puncture pin - Includes a handy puncture pin for quick and hassle-free opening of standard 29oz cartridges, saving time on your projects. Durable and reliable construction - Made from high-quality materials, this manual caulking gun is built to withstand tough jobs and frequent use. Specifications and compatibility - Cartridge size: standard 29oz cartridges - Thrust ratio: 18:1 - Function: manual caulking gun with dripless on/off switch - Material: high-quality construction for durability - Suitable for medium-viscosity sealants and caulks Applications and use scenarios - Kitchen and bathroom sealing: caulk around sinks, tubs, showers, and tile lines to prevent water intrusion and create clean seals. - Window and door installations: seal frames and trim where precision and control are required in tight spaces. - Exterior weatherproofing and trim: seal siding, cornices, moldings, and other exterior joints to protect against moisture and drafts. Notes - Designed for standard 29oz cartridges and medium-viscosity sealants to achieve reliable, professional results with minimal effort.