?Product Compatibility?55-2 Attic Ladder Spreader Hinge Arms Replacement Fits for 2010-Up Werner Mk 5, WU2210, W2208, W2210. ?Stable Support? 55-2 Attic Ladder Spreader Hinge Arms provides solid support to keep stair treads safe and secure.Able to withstand large weights and meet the requirements of daily use. ?Excellence Quality? Made of high quality materials, carefully designed and crafted to withstand long term use and a variety of environments. ?Cost-Effective? Save money by installing once and using for a long time.Smooth switching action to enhance the user experience. ?After-sales?If you have any questions or suggestions about our Attic Ladder Spreader Hinge Arms Replacement, please contact us by email, we will reply you within 24 hours.