Our Double Keder features two keder cords, welded in keder fabric, which can then connect two keder rails together. Most commonly used in RV, camper vehicle, motorhome, canopies, and retractable awning shade applications with 7.5mm PVC Double Keder Rail Strip or 7.5mm PVC Double Rail. Available at a minimum length of 45 feet, additional increments sold in 3 foot segments. Always… Made In House. Call (888) 727-7050 or Contact Us for a Quote on bulk purchase options