Strip of 5 supports for embroidery bobbin cones (1000m Brothread or other) to fit a tray 240 mm wide. Each strip is 50mm wide and the supports are 40mm high. My trays were deep enough for 6 strips to just fit. No Assembly required. 4 strips will fit on a standard Anycubic Kobra S1 bed. I used the standard Anycubic Next defaults for PLA filament.