The Attic Ladder Spreader Hinge Arms by VANBRO are designed specifically for the 2010 Mk 5, WU2210, W2210, and W2208 models. Made of steel, these hinge arms are durable and reliable for supporting and spreading out the attic ladder for easy access. The installation instructions included ensure a smooth and successful installation process. Ideal for business and industrial use in material handling, these hinge arms provide a sturdy solution for accessing and working in attics and lofts safely.