- Widely used: four connection bases including beautiful rubber base, structural rubber base, glass rubber base and structural rubber arch base. Joining tools can be used in bathrooms, kitchens, water tanks, doors and windows, frame sealing, and outdoor wooden houses. - Good performance: precision machined nozzle design for filling seams comes in different sizes. The connecting seat accessories are suitable for glass glue, sealant, ceramic tile epoxy adhesive, structure adhesive and various silicone spray sealing guns, meeting filling requirements of different distance angles and providing better sealing performance. - Complete combination: 22 pieces total. This package contains 16 different sizes of sealing nozzles with 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 18 mm, 20 mm, 23 mm, 25 mm, 28 mm and 30 mm, with 6 connection sockets. This thoughtful and complete combination can meet your different filling requirements. - Clever design: seam filling nozzle features a 45 degree mouth shape to reach gaps in daily life. Independent protective cover helps avoid blockages and waste. What you get - 22 pieces total: 16 sealing nozzle sizes plus 6 connection sockets. - Sealing nozzle sizes include 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 18 mm, 20 mm, 23 mm, 25 mm, 28 mm and 30 mm. Use scenarios - Sealing around bathroom glass doors and showers, tile joints, and window frames to prevent leaks. - Completing kitchen and countertop joints, backsplash edges, and water tank connections for a watertight seal. - Sealing exterior joints on doors, windows, and outdoor wooden houses to improve weather resistance and longevity.