Professional Material: Compared to plastic, Our water jug cap is made of professional silicone material, Which is healthy, Ensuring your drinking water remains pure and fresh during storage. Upgraded Leak-Proof: 3 &5 gallon water jug cover fits for 2,3, 4,5 gallon water bottle, Fits 55mm/2.16 inches bottles, The caps are flexible and pretty tight which ensures that the water in the not splash. Reusable & Use: Compared with ordinary plastic caps, Our water jug caps can used for thousands times which , Reduce plastic waste. It is great solution for indoor and outdoor water store. Easy to Install & Remove: The water jug cover features the latest floral, Anti loss ring and Air-tight design. Installation of the jug cap is very easy.Just place the lid on the kettle and push down by pressing on the top of the lid to make sure it fits perfectly, Simply lift the lid upwards to remove it easily. Color: Blue Material: Silicone Package Contents: 5 x 5 gallon jug cap Only the above package content, other products are not included. Note: Light reflection 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.