Oceansouth Premium 3 Bow Bimini Top with Rear Support Poles, Available in Blue, Black or Grey and in Five Different Sizes Heavy Duty 1" Bright Dipped Aluminum framework. Heavy Duty 9.45oz/yd. 600 Denier Polyester Canvas Fade, Mildew and Water Resistant. Heavy duty Marine grade nylon Hardware, ,stainless steel 316 fasteners. 51" Length , Max Height 47" Min Hight 35", Width chosen above Max. Speed Rating 45 knots.