Thrust ratio of 8:1 for use with acrylic, adhesives, asphalt, butyl, and cement. Smooth pressure rod requires less force and is quieter than a ratchet-style pressure rod. Revolving frame allows cartridge to rotate for maintaining bead orientation when caulking around corners. Zinc alloy handle and trigger for corrosion resistance. The caulk gun with built-in anti-drip features can be used for all 10 oz cartridges. It takes seconds to load and seconds to remove. You are ensured a clean job due to the drip free technology. Full instructions are included. Cleaning is a breeze. Update Design: A 360 degree rotatable barrel helps using process more flexible, built-in spout cutter means the caulk gun has a utility knife as a bonus, cutting the nozzle directly. A seal puncture pin leads the liquid out of the spout. A rubber covered trigger comforts soft grip, reducing resistance pressure and friction which also protects your hands. The galvanized metal part makes a rust-resistance body which prolongs the lifespan and makes it more durable Easy Operation: After unlocking the metal piece, the putter can move forwards and backwards smoothly. When thrust exerted, the metal piece (lever) should be locked firmly, then the silicone/acrylic/adhesives/asphalt/butyl/cement will be perfectly controlled under the right use of the metal piece (lever). No drips will happen in using this hand caulk gun when apply medium to high viscosity adhesive. Pure liquid and thin sealant will drip automatically under any situation once placed upside down Portable Gun: This caulking gun weighs 0.76 kg, size 15 inch x 8 inch, the gun's diameter is 2 inch, length is 9 inch. The silver metal handle can act as a hook to hang on a ladder. Smooth plungers allow more control and more thrust to push the caulk. The smooth round rod with spring-loaded thumb release offers a quieter and less effortful project than a ratchet rod Multi-Scene Application: This 10 oz sealant gun/grout gun applies to all types of gaps and joints, such as windowsills, brick joints(to resist the earth breeze), toliet bottom seals,sink sides, etc Note: Make sure the inner seal of the tube is punctured before use for better performance, lubricate where necessary after every 10 catridges. THIS CAULK GUN DOES NOT INCLUDE ADHESIVE. is committed to provide great products for you, any questions please feel free to contact us