Spring loaded ShocStop cushions docked boats to prevent damage Standard Dock D'Fenders include all necessary hardware for mounting on 1.5", 1.68", OR 2.0" diameter posts (as shown below). The MB1 mounting bracket allows the Dock D'Fender to be mounted to floating docks or piers without posts.   The MB1 is included with the 2700 & 3000 series attachment kit.  The attachment kit includes a 30" or 33" tall post, side mounting bracket (MB1), and post covers that allow the standard Dock D'Fender products to be used on virtually any dock. Optional mounting brackets are also available for securing Dock D'Fenders on wooden piers or other structures that do not utilize verticle post supports.