This boat support system from Transhield creates a sturdy structure for your boat cover: increasing the working life of your cover and providing better protection for your boat. The support system is offered in a 2-pole (for standard recreational boats) or 4-pole (for larger boats and pontoons) kit options. The kit includes poles that extend from 36 inches to 70 inches, pole tops with 4 entry points, and 200 feet of webbing!