Usage Tips:Attic Ladder Hinge Arms Left Right Hand Balance Arm Replacement for Werner Mk5 WU2210 W2208 W2210 1、Compatible Model: This attic ladder hinge arm kit has strong compatibility, suitable for Werner Mk 5, WU2210, W2208, W2210. Only applicable to models produced after February 2010. 2、Replacement Parts: These accessories allow you to replace only the hinge arm instead of the entire attic ladder, which greatly saves you time and cost, improves durability and work accuracy. 3、Upgraded Design: These attic ladder hinge arms adopt electrophoretic coating technology, and the three layer galvanizing process ensures excellent wear resistance and erosion resistance. 4、Easy Installation: This kit includes 2 hinge balance arms, 8 screws, and 4 washers, making it easy to install, convenient for you to replace old or damaged attic ladder accessories at any time. 5、Convenient to Use: With a reasonable design, these hinge arms have accurate openings, improving reliable installation and strong load bearing capacity, allowing you to use them with confidence.