This system provides an easily adjustable, effective boat cover support to keep water from accumulating in the center of the boat cover. Extends the life of any boat cover by as much as 50%. The support uses a telescoping center pole (28" to 48") and polyweb straps to form a double ridge line under the cover. The pole rests on a rubber foot and the web straps attach to the stern with non-marring hooks. Instructions are included. - Aluminum pole: 1" diameter. - Polyweb straps: 1" wide, black. - Two sizes available. - Comes individually cartoned.