Part of the Rubbermaid FastTrack Garage Organization System, the 25 in. Twin Track Upright expands your storage space vertically for versatile options. Used to install FastTrack Garage shelving, the upright mounts to the FastTrack Garage rail or can be mounted directly to a wall. Crafted with powder-coated steel for durability, the upright holds up to 300 lbs. and is designed to resist rust and other damage for lasting use.