Specifications:Material: Stainless SteelTypes Available: Round Nozzle, Flat NozzleAlternate Version: Four-in-One Caulking Gun (Plastic) Features:[Versatile Nozzle Options] Equipped with both round and flat nozzles to suit various gap filling needs on construction sites.[Efficient Cement Injection] Delivers precise control over mortar or cement flow, ensuring accurate filling and repair of concrete gaps.[Robust Construction] Made from stainless steel, offering reliable performance and longevity for rigorous site use.[Easy Operation] Can be manually or pressure activated, providing flexibility and ease of use for different project requirements.[Wide Application] Ideal for filling and repairing concrete gaps in buildings, roads, and various other concrete structures. Package Included:Type A:1 x Caulking Gun(Flat mouth) Type B:1 x Caulking Gun(Round mouth) Type C:1 x Caulking Gun1 x 11mm Nozzle1 x 20mm Nozzle1 x 38mm Nozzle1 x 57mm Nozzlemso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;'>mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;'>