Thumbnail Filmstrip of Bobbins - Style M - Size 138 - Dark Mahogany (Eddington 306) - Nylon - Sideless - Box of 72 Images
Style M prewound sewing machine bobbins Size 138 / Tex 135 color Dark Mahogany. They are manufactured by Nylon, made from Nylon and come in a Box of 72 (Half-Gross)