They fit all standard hoses and water inlets. they do not leak, and they provide a solid swivel connection between your hose and a sprayer. The two pieces connect by pulling back the collar on the female coupler, inserting the nipple, and releasing the collar. It is an easy process. Visit us at https://easyflowflushing.com/product/stainless-steel-female-garden-hose-connector-with-male-end/