This package includes a Origin Catapult Tower and Flat tower bimini. Orig Wakeboard Towers is a new company, but the people behind the brand have been in the marine industry for some time now designing, developing and supplying alloy products around the world. With over 10 years experience in the aftermarket wakeboard boat and aluminum manufacturing business, you can feel confident in your purchase from the beginning to the end. Measurements 78" to 106" between the deck mounts 65" between front and rear mounts Materials Seamless 2.25inch, 6063 Aircraft Aluminium tubing. CNC Machined solid 6061 Aluminium Fittings. Stainless Steel Hardware. Lowering the Wakeboard Tower. The wakeboard tower was designed with low storage in mind. Front legs detached from the fittings. Rear legs pivot backwards to lower the top section. Top section hinge lowers the front legs flat. Easy job no more than 2hours. Reborn wakeboard tower bimini is designed to fit most popular wakeboard tower on market, It is fully adjustable it can slide forwards or backwards for minor adjustments. The support arms can be at the front, rear, above or below for the right attachment required for your tower. The main cross bar is pin adjustable and will lock in strong between your wake tower legs. When towing your boat simply remove the cover via zippers and velcro, the frame is left in position. How to choose the correct size? Measure across the boat between the front legs and between the rear legs across the boat at the height you would like you bimini to sit. If your measurements are between 53inch to 62inch, you need to order 1350v small size Small 1.35m(W) x 1.9m(L) or 53in(W) x 75in(L). If 63" or above you need 1580 large size Large 1.58m(W) x 1.9m(L) or 62in(W) x 75in(L)