Package Include: 2 Male Quick Connector + 2 Female product adapters Extra 2 washers +2 Sealing ring.Design and Operation: 1-Handed Operation.Easy to connect and disconnnect with garden hose connector.The double lock design can better protect the steel ball, be firmer, Can extend service life.Quick Connector Can Stand Up to 150 PSI,no-Leak connection.After Sale: If you have any other questions, please feel free to contact us and we will try our best to solve all problems for you.US Standard: Standard 3/4"GHT threads water hose quick connectors, You can save much time using the quick connet sets install in spigot, hose end and nozzle.Sturdy material: these hose connectors are made of 58-3 brass, The steel ball and spring are made of 304 stainless steel,which is rustproof, corrosion resistance and durable.