1. Multiple options: Includes 14 different sizes of sealing nozzles (5mm, 6mm, 7mm, 9mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm), 8 connector bases (4 types of base adapters with different functions, 2 for each), 4 scrap slots, an extension rod, and a sophisticated, complete, and comprehensive combination to meet various filling requirements. 2. quality material: The sealing nozzle applicators are made of stainless steel. 3. Easy to install: The sealing nozzle can be easily attached to sealing tools. The sealing tool set can be used for filling and trimming in bathrooms, kitchens, water tanks, doors and windows, sinks, and more. It operates smoothly and simplifies your work, making it very practical and convenient. 4. Sealing performance: The sealing nozzles come in various sizes designed for most areas, meeting the filling requirements of different distance angles and providing sealing performance.