1Aluminum Alloy Material: Made of refined aluminum alloy, which is durable, wear resistant and rust proof 2Ergonomically Designed: The grip is comfortable and labor saving, which can better save your working time 3Large Capacity: Used in building decoration, solar photovoltaic industry, electronic appliances, automobiles and auto parts, s and containers 4Classic Shape: After beening carefully crafting, having a classic appearance,committed to achieve the best using effect 5Strict Standard: Strictly following the industry standards and controlling the quality to meet your higher requirements Item Type: Pneumatic Caulking Gun Material: Aluminum Alloy Capacity: 600ml Working Pressure: 0~123psi Working Noise:1 xPneumatic CaulkingGun 1 x Gas Tube Connector 6 x Nozzle 1 x Seal Sheet 2 x Sealing Cover 1 x Connection Block 1 x User Manual 1. The connected air pressure should not be greater than 145psi. 2. Before disassembling the glue gun, the air pressure tube must be separated. 3. To operate smoothly, after each construction, use the solvent recommended by the sealant manufacturer to wipe off the remaining sealant in the barrel4. During construction, the front end of the barrel should be closed tightly.