Features & Details Convenient Multiple Carrier Function: This set of roof kayak carrier can be put into kayak on one side.4 pieces carrier is easy to transport one or two kayaks, adjust the use space at any time, let you enjoy your vacation more conveniently and easily.4 pieces carrier is easy to transport one or two kayaks and adjust the use space at any time. Quick Folding Design: Featuring a quick-folding design that allows kayaks of different styles and widths to fit as snugly as possible on the carrier, with our extra-long straps larger than 8.9' / 2.7 m secured to keep the kayak stable during transportation.The 0-180 degree folding range also allows you to save space when not in use, lowering the roof height and allowing for easy access to the garage. This design can also be used to transport skis, surfboards, small canoes, and luggage on the roof. Easy To Install Universal Roof Rack: This rack needs to be mounted on the roof beams or roof bars, it is highly compatible with round bars Φ1.0" - 1.6" / Φ25 - 40 mm, flat bars 0.6" - 1.6" / 15 - 40 mm thick, and the width of the cross bar rack is <3.9" / 100 mm can be mounted, which is compatible with the size of most of the roof bars on the market. It is easy to install by tightening the screws at the bottom to fix it to the roof bars. Strong & Heavy Duty: Our racks are made of high-strength thick alloy steel and high-quality plastics, the whole set of racks can withstand a dynamic load of 150 lbs / 68.0 kg, easy to load a large kayak without deformation or damage. In addition, our racks are added with rust-resistant coating for a long service life in the wind and rain. Note: Please check the load capacity of your car roof and crossbar rack when using to avoid crushing the roof. Reduce Scratches: Wear-resistant plastic small brackets as well as thick oversized soft cushions attached to each bar effectively prevent kayak rubbing and damage, and provide full protection for the crossbars and kayak roof rack.