Thule's Express Surf Straps are stretchable bungees to secure different size surfboards, stand up paddleboards (SUP), and sailboards to the vehicle roof rack for safe and secure transport. Set of two. Simple and easy to use cinching system keeps boards protected and stable during transit. Looped ends fasten securely around the vehicles load bars. No-fade UV resistant straps deliver long term durability. Set of two straps. 91021539921 26915500015 531