Mini Adjustable Width Spool Holder

A squat width adjustable spool holder, 4cm to the top of the bearings. Inspired by my lack of vertical shelf space.
Snap pins securely hold the bearings and the screw knob in place. No glue or metal fasteners required.

V2 update: The bearing clips were not strong enough with the way they were mounted on version 1, so version 2 has bearing clips in 2 halves held together with a snap pin and supported by the holes they sit inside. The short half posts through the holes from the outer sides, the longer half posts through the bearing and the holes from the inner sides, and they snap together in the middle with the pin.