RV Level Graduated RV Level; FEATURES: Takes Guess Work Out Of RV Leveling Optional Screw Holes 2 Per Pack Made In USA 90 Day Warranty From The Date Of Original Purchase Markings indicate number of inches required to raise or lower the trailer or vehicle. These made in USA levels can be mounted with the optional fastener holes or by using the self adhesive back. Use both levels for front to back and side to side leveling. Hopkins is a leader in the manufacturing, distribution and marketing of quality, innovative towing and vehicle accessories for the automotive do-it-yourselfer, installer, recreational, agricultural and commercial user. Product solutions offered include: Towing electrical and RV levels; snow and ice tools; vehicle cleaning tools; DIY oil change and fluid maintenance tools; automotive air fresheners; vehicle organization and mobile accessory products; automotive protection products including seat covers, steering wheel covers, floor mats, and sun shades; and tire safety solutions. Hopkins strives to make the consumer experience simpler and more rewarding through innovation and value. We follow a consistent philosophy, including: leveraging consumer insights to drive product innovation, delivering end-user value through efficient manufacturing strategies, maintaining rigorous quality control measures ensuring peak product performance and providing premium consumer support through a dedicated team of support specialists and mobile/on-line resources.