Voile Bike Rack Straps 20″ are made of tough stretch polyurethane, with a UV-resistant additive to increase their lifespan. Their quick-snap ends fits to 10 mm tubing. This is compatible with most bike packing racks, baskets and cargo systems. Resistant to heat, cold, moisture and UV light, few things in life are as reliable as your Voile Bike Rack Strap. Over the last 30 years they have become the ultimate alternative to duct tape, nylon straps, and bungee cords. They’re perfect for holding the stuff in your life together. Choose either Black/White or Orange/Black, and start strapping!