[Safe material]:Water dispenser valve made of PP, you can use it with confidence. [Reusable & Multiple Uses]: Using instead of smaller bottles money and leave less to be recycled! Perfect for office, school, camping, sport events, etc. [Size and Applicable]: Only fits 55mm Crown Top Non Threaded Water and not works for the 48mm screw type lid. Suitable for 1-5 gallon from all . [Easy to Use and Anti-dust Cap]: With a dust-proof cap, it can prevent dust from polluting the drinking water, healthy.Easy to install, just it into the bucket mouth and rotate clockwise till it's fully fixed. Colour: white Material: PP Size: 9x10cm Package Contents: 2 * Water Dispenser Valve Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.