Filament storage rack

I used 2 widths of pipe for this both from a clothes drier off amazon.I cut down some sections of the wider pipe to slightly longer than a reel of filament for the height between shelves. Rainberg Airer Clothes Drying Rack, 4-Tier Foldable Clothes Hanger, Adjustable Large Laundry Racks for Indoor Outdoor Use With 24m of Drying space. (Black) : Amazon.co.uk: Home & Kitchen