Medium In-line Trolley Brake 35mm (Ref. 413051602)

One of the outdoor parts with the highest level of loss or misplacement. The spool cap/spool holder is the essential plastic disc that is placed on the horizontal pin of your sewing machine to firmly hold the spool of thread during work.
This is the Medium-sized version, with a 35-millimeter diameter, designed to create the ideal balance for most standard-sized spools of thread. The use of this intermediate spool cap prevents the spool from jumping during sewing and ensures that the thread unwinds evenly without snagging on the plastic edges of the tube.
(Original reference and equivalents: 413051602)