The tubing size: soft tubing ID8 mm OD12 mm OR ID8 mm OD12 mm. Can be used in Computer Water Cooling System. Chrome plating processing and durable. Features: 1. Exquisite appearance designed for water cooling. 2. Environmentally friendly copper nickel plating, flagship quality, first-class texture. 3. Brass material, durable and reliable. 4. The wrench notch is made on the thread, the whole is compact, the double-layer pagoda is safer than the single-layer pagoda, and can form 2 seal lines. 5. The inner diameter is chamfered, the resistance is smaller and there is a flat shape. Specification: Condition: 100% Brand New Material: Metal Color: Silver Product Name: 2PC G1/4 computer water cooling 2 points hose quick twist connector Thread Size: G1/4 (2 points), the actual outer diameter is 12.9mm Surface Treatment: Chrome Plating Seal: With silicone seal Dimension: Outer straight 18mm, Overall height 18mm, Screw height 5mm Applicable: Inner Diameter 8MM, Outer Diameter 12MM, 2 points hose, 8*12 tube Weight: Approx. 42 g Package List: 2 * Connector Note: 1.Please allow 1-3 cm error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. .