[Non-Spill & LEAK FREE] - Fits for 2, 3, 5 gallon water bottle SNAP TOP with 55mm - 60mm opening , The caps are flexible and pretty tight, sealed perfectly for SNAP TOP bottle upright and sideways storage. SCREW TOP bottle only for up storage, both can be used for water dispenser plastic bottles. [Reusable Water Jug Caps] - Stop use one time plastic caps, which can used for thousands times saving your money. Great solution for indoor and outdoor water store, water dispenser caps, water jug caps for refill. [Easy Put ON & OFF] - The ordinary plastic caps are very difficult to remove, you can take off our caps with your finger easily, which can saving your hands and fingernails. [Anti-Drop Off Small Lids] : We upgraded water jug cap, make a new Anti-drop off CHOKE POINT to prevent the middle lids falls inside the container, the cap is thicker than before. [Material & Service] - Made of food grade silicone BPA Free, Sturdy & Durable. High temperature resistant, Dishwasher safe. Satisfaction Customer service , just contact us if you have any problem about our water jug caps.