Cleaning Brushes (QD4965) is backordered and will ship as soon as it is back in stock.
I like how they fit into all the crevasses to get the lint out of the bobbin area.
I have an old, oil soaked brush that catches lint well, but is too thick. These little things are great! get into all the little hiding places I need to clean out. Helps keep the tension right, and reduced thread breakage by keeping it lint free