Summary

Adjustable cable spool: tighten/loosen to adjust length.
Modular: need extra length? Add as many extension pieces as you need.
Movable hooks to hold cable ends in place (fits cables up to 7 mm in diameter).

Printer: Creality Ender 3
Nozzle diameter: 0.6 mm
Material: PLA (outer, inner & extension parts), TPU (hook & seal)

Slicer: Ultimaker Cura
Quality: Draft (0.32 mm layer height)
Infill: 20%