STREX Stretch Fastener Black (50 pack)

The biggest waste of money and non-existent customer support. The design is terrible. The rubber tabs are “theoretically” supposed to loop around a disk that you glue onto the snap, but the snap is too shallow and so it doesnt securely anchor the tabs and so they readily pop off. Within the first week of use about half ended up in the water. We ended up reverting back to the original cover. Would be a great concept if it worked.