The silicone nozzle comes with 2 threaded adapters that fit most water bottles. Skwert is designed to fit in your back pocket for an on-the-go clean. Forget finding a shower hose, just find a water bottle, screw it on, and you’re ready to go!The kit also comes with a hose adapter, so you can use the nozzle on your favorite shower hose and a sanitary storage cap. The 4” silicone nozzle is 100% soft touch silicone. The adapters are solid ABS construction with a small thread and large thread fitting for a non-leak fit.This product is safe with all lubricants, completely hypoallergenic, non-irritating and compatible with sensitive skin.