(1) The canvas are made of marine-grade 600D polyester with PU Coating. (2) 1'' diameter aluminum frame for maximum strength, anti-oxidation spray paint, lightweight and durable to prevent rust. (3) 4 adjustment Straps Front and Rear. One storage boot for storage when not in use. (4) All stainless steel mounting hardwares, Installation kit and assemble instructions included. (5) 10 colors: Light Grey/ Pacific Blue/ Navy Blue/ Black/ Beige/ Burgundy/ Dark Grey/ White/ Teal/ Green (6) 13 sizes available: [3 bow]---6'L x 46"H x 54"-60"W 6'L x 46"H x 61"-66"W 6'L x 46"H x 67"-72"W6'L x 46"H x 73"-78"W 6'L x 46"H x 79"-84"W 6'L x 46"H x 85"-90"W [4 bow]---8'L x 54"H x 54"-60"W8'L x 54"H x 61"-66"W8'L x 54"H x 67"-72"W 8'L x 54"H x 73"-78"W8'L x 54"H x 79"-84"W8'L x 54"H x 85"-90"W8'L x 54"H x 91"-96"W Tips:How to measure your boat? Length: the length of the top will determine which part of the boat receives shade and how much coverage is available Height: Consider the primary use of the bimini to select the proper height of the frame. Measure upward from the selected mounting point while standing on the deck to get a feel for how much room you will have once the bimini is installed Width: Determine where you want the mounting points to be, this will set the width of the frame and the position of the top when it is folded up and not in use, determine which part of the boat gets shade Attention:Bimini Top should never be open when boat speed is over 25 mph.