Features: brand new and high quality The corresponding model of the ruby nozzle is MK8. The body of the nozzle is brass, the gemstone is artificial gemstone, we still maintain the world's top workmanship, each ruby nozzle will go through a lot of processes in the manufacturing process, I hope that our rigorous attitude can be recognized by customers. A torque wrench is required during the installation of the nozzle. The nozzle is subjected to a maximum torque of 5 N.for m. Exceeding this torque will damage the brass inlay. If you don'for t have a torque wrench. Then it doesn'for t matter. Don'for t use too much force during the installation process, please try to control your strength. When disassembling, heat to over 200 before disassembling. It's a good replacement for your bad or old ones. The products have been strictly tested before leaving the factory, and the quality is guaranteed. Specifications: Material:Brass Size:Approx.1.3x0.8cm/0.51x0.31in Net Weight:20g Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x MK8 Ruby Nozzle