The IRONWALLS 3D Printer Filament Storage Rack is a robust and versatile solution for organizing your 3D printing materials. Crafted from heavy-duty iron, this rack can hold up to 45 spools of filament, making it ideal for both hobbyists and professionals.

One of the standout features is its adjustable width on the top and third tiers. This allows you to accommodate various spool sizes, from 200g to 1kg, ensuring high compatibility and efficient use of space.

Available in both 3-tier and 5-tier configurations, this rack offers flexibility to suit different storage needs. The integrated metal design enhances stability, while the square tube construction provides superior load-bearing capacity.

Assembly is straightforward, with all necessary tools included. Users have praised its ease of setup and functionality as a spool holder. However, some noted a minor issue when assembling the 'short version,' where choosing between lower or upper rails affects the number of shelves and aesthetic completeness.

Overall, the IRONWALLS Filament Storage Rack is a reliable and sturdy organizer that keeps your workspace tidy and efficient. Whether you're managing a large collection or just starting out, this rack is a valuable addition to any 3D printing setup.