Pretty straitforward holder for 1 kg spools 20 cm / 8 inch diameter, up to 66 mm wide. Wanted to have something steady and sturdy to avoid accidents with lighter spools.

Have used a clamp to place standard 608 bearings (4 pieces in total), but you may use a hot fan or a mallet. Pins allow lower and 3 mm higher placements of the rollers in case you spool is a little smaller. Small silicon feet at the bottom would also be useful.

Tryzub is an official Coat of Arms of Ukraine.