Attic Ladder Hinge Arms Replacement Kit: 55-2 Attic ladder spreader hinge arms is designed to replace old and worn loft attic ladder hinge kit, improve operation smoothness and ladder safety. Compatibility: Attic stairs pull down ladder replacement hinges compatible with Werner Mk5, WU2210, W2208, W2210, Fits for Werner Attic Ladders Manufactured After 2010. (Please check your ladder model before purchasing.) High Quality: Attic stairs pull down hardware is made of thick white zinc. After careful rust prevention treatment and three-layer galvanizing process, it has higher efficiency and durability, as well as excellent wear and corrosion resistance. (Tips: Applying lubricating grease to joints can prevent wear and tear.) Easy To Install: Attic ladder pull down hinge arms come packaged with perfectly fitting attic ladder replacement parts. Installation requires two people to cooperate with each other, and the process is very simple.