Feature:Best-Selling Size- That allows you to transport boards up to 8 feet long. Arms can be adjusted to suit your bike and surfboard, and the bungee cords keep it secured and safeSide-mounted-The most popular way of driving a bicycle with your surfboard is using a side-mounted surfboard bike rack.Universal Use-Works with all types of bikes - Beach Cruisers, Road Bikes, Mountain Bikes, EBIKES, BMX Bikes. Not recommended for lightweight seat posts (titanium or carbon fiber)Easy and Safety-Simply clamp it to your seat post, elastic rope ensures the board stays in the rack, foam covered arms prevent dings or scratches on your surfboardHight Quality- Strong aluminum construction of this durable surfboard rack won't rust, chip, or corrodeSpecifications:Material: Aluminum + Foam Max. weight to carry: 7kgs / 15.4lbsTube Diameter: 31mm / 1.2in Mount Length: 14cm / 5.5in Tube Length: 36cm / 14.2in Rack Length: 50cm / 19.6in Package Include: 1pc of Fix Mount 1pcs of Wrench 8pcs of Screw