Saturn 4-Bow Bimini Top Sun Shade for Inflatable Boats, Jon Boats and Fiberglass Boats. Waterproof reinforced canopy top made of 600 denier PVC coated polyester fabric. RRear aluminum support poles, front nylon adjustable length straps. 1" diameter anodized aluminum frame with stainless steel screws. Make your boat look really cool and sporty. Can be used while riding boat. Easy to install. Packing box for 4-bow top is 69x14x4". All necessary hardware is included. Make your boat riding experience even more comfortable and protect yourself from the sun's ultraviolet rays with a New Saturn 4-Bow Deluxe Bimini Top Canopy. Ends of support poles of fully assembled bimini top can be pushed together as close as 59" or pull apart as far as 67".