The Metro TTM18S Track Shelving Kit is designed for efficient storage and mobility. This Super Erecta® Top-Track Mobile Unit Kit features an 18-inch width and includes essential components such as posts, casters, caster channels, donut bumpers, and roller bearing assemblies. The stainless steel finish ensures durability and a sleek appearance, making it ideal for various environments. Shelves are sold separately, allowing for customization based on your storage needs. Enhance your organization and accessibility with this versatile mobile shelving solution.