Hopkins Manufacturing Corporation makes your towing experience simpler and more rewarding through innovation and value. Hopkins offers a variety of towing solutions including vehicle wiring kits, adapters, vehicle and trailer connectors, breakaway systems and much more. Today, more than 40 percentage of retail category sales are generated from Hopkins innovations. The Hopkins Never Fade Graduated Level maintains crystal clear performance without fading over time, unlike traditional levels that fade due to UV exposure. Markings indicate the number of inches required to raise or lower the trailer or vehicle. Includes screw holes or self-adhesive back for mounting options.