Features: Green greases furthers reduces friction and improves the feel of use. Strong compatibility, suitable for many types of elbows. Thickers wall for more wear resistance. Lengthened In order to avoid that the inner tube is not long enough, it can be cut out Package includes: 10pcs/bag pipe. Specifications: Teflon Inner Diameter: Approx. 2.2mm/0.09inch Outer Diameter: Approx. 3mm/0.11inch Package Includes: 10pcs/bag Inner Pipe note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.