Description:100% Brand New and High Quality. 1. The ring is used to fix the plastic sleeve and has a large fixing force.2. Press the release to release the tube that is bitten by the lock spring.3. This quick fittings are used for industrial automatic apparatus and not be for medicinal equipment.4. The locking spring is suitable for nylon tubes and polyurethane tubes with a large gripping force.5. The upper end of the locking sleeve is tightly connected with the silver ring, the locking spring is fixed, and the sealing ring is fastened at the lower end.6. The sealing ring used can be used under low vacuum -0.1Pa and 1MPa pressure. The special groove ensures the tightness of the tube when inserted and reduces the insertion resistance.Specifications:Color: black + blueMaterial: plastic + PUSuitable outer diameter pipe size(approx.): diameter 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mmPackage Included:5Pcs * Pneumatic ConnectorNote:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 0.5-2cm differences due to manual measurement.