High quality premium elastic and flexible rubber latex core covered with polyester. Strong, durable and long lasting. 6 Pieces kayak inflatable boat D-ring round patch pad with 6mm 2.5m elastic shock cord, lightweight, strong, sturdy, long lasting and corrosion-resistant color blue sizeas show Good PerformanceRoughen back side and clean with solvent prior to gluing for good results; Good performance and great sun protection is the nice choice. Easy and convenient to use, roughen back side and clean the surface to gluing for a secure and durable bond. Multi purpose: used for rescue rope, bailer, cargo, thigh straps Great replacement accessories for PVC inflatable boat, raft, dinghy, kayak, canoe, stand up paddleboard, SUP, surfboard and more