The package of this product includes 3 glass glue extension nozzles ,easy to use and durable. Made of high-quality glass adhesive material, durable and resistant to bending, odorless, corrosion-resistant, and suitable for long-term use. The tip of the plastic caulking nozzle adopts a standard size thread design, which is easy to install and tighten, and is not easy to fall off. This caulking tool produces even and delicate glue, sealing without leakage, cracking, or yellowing. This product is widely used in construction and industry. Used as a tool for installing doors and windows. Used for daily maintenance, such as repairing gaps, gaps, wall tiles, floor tiles, and flooring. If you have any questions about our product, please feel free to contact us and we will provide you with a satisfactory response. Welcome to our store, there are many related products that may be suitable for you., Manufacturer: ZHIDONG