The kit features a 5-hole 4-in. silicone nozzle and 2 adapters (large thread and small thread) that fit most water bottles. The kit also comes with a hose adapter so you can use the nozzle on your favorite shower hose and a sanitary storage cap. Safe with all lubricants completely hypoallergenic non-irritating and compatible with sensitive skin. Ideal for travel on-the-go and everyday use.