Ronix 8\" Diameter Happy Hour Boat Bumper in Black The new Ronix Happy Hour Boat Bumper is a versatile fender designed to protect your boat from damage. This bumper also has the ability to deflate in order to allow for more space while on board. Making storage and protection easier this bumper is durable and practical, ideal for all water adventures. The air valve, just like you find on a pool raft, makes it easily to blow them up, and thanks to the relatively small volume, you can do that without a pump and without getting light-headed.