Sturdy solid plastic construction: Made of thick robust plastic with seamless smooth inner walls, this nozzle is crack-proof and durable. It ensures stable, even sealant extrusion without clogging during all caulking and sealing jobs Universal threaded base design: Standard screw-on thread fits most regular sealant cartridges and caulking guns perfectly. You can quickly twist on or remove it as spare replacement nozzles for daily renovation tasks Freely customizable cuttable nozzle: You can trim the tip to different opening sizes according to various gap widths, which controls glue output accurately, cuts working time and greatly improves construction efficiency Equipped with airtight anti-drying caps: The matching sealing lids isolate external air completely after use, preventing residual sealant inside the nozzle from curing hard so the remaining adhesive can be reused next time Versatile caulking accessory for all users: Great for household DIY enthusiasts and professional builders, widely used in door and window edge sealing, tile gap filling, floor finishing as well as kitchen and bathroom repair projects, Manufacturer: Zovloer