PVC Rub Rail Flexible Dinghy Black. use 3/8" rope insert. This item is 1-1/4" in height, a top width of 11/16" and a bottom width of 1/2". It is flexible and easy to handle. This rail is designed for use on dinghies and small boats. We recommend using a 3/8" nylon rope as the insert (not included). It can be drilled, countersunk, and sawed as easily as wood, with regular wood working equipment. You can use either self tapping screws, pop rivets, or bolts to fasten the PVC down. This product may be shipped via UPS.