A HUGE 76" x 76" square frame that can adjust to virtually any position (not one size fits all like most competitors) Must mount onto round tubing (cannot attach to flat plate, or oval tubing) - WAKE TOWER NOT INCLUDED - Will accommodate 1-7/8" tubing (5.89" circumference) to 2-1/2" tubing (7.85" circumference) - All mounting hardware for these measurements is included. Fits over the top of your tower to offer headroom, speaker and light clearance 100% compatible with your Big Air wakeboard tower or virtually any tower on the market. Fits other towers including: Monster, Aerial, DIY, Barewest, Samson and OEM Towers ***DOES NOT INCLUDE WAKE TOWER*** The Big Air Super Shadow is our over-the-tower bimini that fits over all Big Air wakeboard towers and virtually all other towers on the market. At over 6 feet on all sides, a large, 76" x 76", with the Super Shadow Bimini you will enjoy all the shade coverage! Features and benefits of our Super Shadow Bimini includes: - Must mount onto round tubing (cannot attach to flat plate or oval tubing) - A 76" x 76" square frame that can adjust to virtually any position (not one size fits all like most competitors) - You can choose your bimini mount location, within our specified guidelines. (Most top mount biminis are fixed position) - Fits over the top of your tower to offer headroom, speaker and light clearance - Fade-proof and stain-resistant fabric with optional upgrade to Sunbrella - Installs in minutes - no tools needed after initial installation - 100% compatible with your Big Air wakeboarding tower or virtually any tower on the market -Fits other towers including: Monster, Aerial, DIY, Barewest, Samson and OEM Towers - Speed tested up to 50 mph on the water