Conveniently stores your registration behind your license plate holder. Adjustable brackets mount to the rear of most stock license plate assemblies. Available in upright or lay-down style. The hardware mounts through the front of the license frame. The end caps on the tube are sealed with o-rings to insure a water-tight seal. The length of the tube is 4.5". The Tube is constructed of polished Stainless Steel. The brackets are machined from 6061-T6 Billet Aluminum, then polished and chrome plated. Includes all necessary mounting hardware.