3 & 5 gallon water jug cap replacement non spill bottle caps anti splash peel pack of 20 jvigue <b>how to use</b><br> 1.just press it on hard<br> 2.best important step: a sound “pop” is a key point to make sure spill free.<br> <br> <b>uses in different occasion </b><br> white inner inset, air-tight foam, dust-cover could be taken off as you need.<br> 1.if you put the caps on probe type dispenser, the caps would be stick with the probe instead of float around in the water.<br> 2.if you use it in the water bottle on the top rack or with water pump, you can take off the inner caps for reusable.<br> <br> <br> <b>package included</b><br> 20×3 & 5 gallon water jug cap<br>