>>> Widely used: Size: 18 15.5cm / 7.1 6.1in. It is suitable for 50ml combinations and basically compatible with all standard 50ml cartridges.>>> PRO TOOLS: This glue gun allows for easy automatic mixing and dispensing of impression material. Used to lubricate or overflow different two-component adhesives or coatings to solve the problem of uneven mixing of two-component adhesive products.>>> High Quality Materials: This glue gun is made of high quality, high strength plastic material for maximum durability. The surface is smooth and burr-free, coating processing, the hand feels delicate and comfortable. Manufactured under strict quality control standards, the improved design can extend the service life.>>> Easy to Use: This glue gun has reasonable structure, ergonomic handle is comfortable to hold. The tool can also be used with kits of similar materials with ratios of 2:1 and 1:1.>>>Service: If you have any questions about our products, please do not hesitate to contact us. We will respond within 24 hours. Help::Need more help::Contact us at the top of the Amazon page and select "Chat Customer Service".