1. Size The package contains 16 different sizes of caulking nozzles of 5mm, 6mm, 7mm, 9mm, 10mm, 12mm, 13mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm and 35mm, with 8 connection bases. There are clear specification markings on the surface of caulking nozzle set for easy identification and use. You can choose the appropriate model to use as needed. 2. Material Made of 201 stainless steel and pp plastic, the caulking nozzle applicators are thickened, durable and wearresistant, which can effectively prevent rust and corrosion, will not be drawn when used, and can be applied smoothly. Easy to clean and can be reused for a long time. Largecaliber nozzles are suitable for quickly filling large gaps, and smallcaliber nozzles are suitable for fine filling of smaller or narrower gaps. 3. Feature The 45° duckbill design can aim at the gap or corner more accurately, ensuring that the caulking glue is evenly and smoothly filled into the gap without leaking or overflowing, providing good caulking effect, saving time and completing the repair work efficiently. This caulking tool kit can be easily installed without tape, and is equipped with multiple connection bases to ensure that the connection is firm and the caulking nozzle will not shake or fall off when caulking. 4. Application Suitable for sausage style gun or tubes with threaded ends, not suitable for typical DIY cartridge gun. The reusable sealant finishing tools can be used for filling and trimming joints in bathrooms, kitchens, toilets, water tanks, doors, windows, floors, countertops, sinks, etc. Fit for structural glue, glass glue and beauty glue.