Features15 SETS FITTINGS: Including 5pcs quick connectors and 5pcs locks, sufficient quantity for easy connection and replacement.2PLASTIC STEEL: Made of plastic steel material, has good rigidity, aging and corrosion resistance, and not easy to rust.3TIGHT THREAD: These self locking air fittings have tight thread structure that is clear and wear resistant and not prone to cracking.4STEEL BALLS: Built in high hardness steel balls, with tight and smooth buckle, and the operation is convenient and reliable.5STANDARD SIZE: Maximum pressure resistance up to 20kgf/cm, wide range of applications, suitable for standard inner diameter hoses.SpecificationItem Type: Quick ConnectorMaterial: Plastic SteelMaximum Pressure Resistance: 20kgf/cmWorking Pressure: 0~0.92kgf/cmOperating Temperature: -35~60Package List5 x Connectors5 x Locks