Twelve-Bobbin Thread-Tail Storage Tray
A 126 x 96 x 14.5 mm tray with twelve wells, each 26 mm across and 12.5 mm deep. Each well holds one sewing-machine bobbin up to 25 mm in diameter and 12 mm tall, such as a Class 15 (about 20.5 x 11.7 mm), Class 66 or L-style. A 12 mm finger trench runs along each row so you can pinch a bobbin out from the sides, and each well has a 2 mm angled slot to hold the thread tail so wound bobbins stay tidy and don't unravel.
organizer sewing bobbin class-15