ITEM NAME:20pcs/Pack Sewing Machine Bobbins Metal Spool 20x10mm for Industrial Machine Description: - Material: Iron, high quality and durable to use. - Useful sewing machine part, easy to install and replace. - This universal metal bobbin will fit for most of industrial sewing machines. - Size: Approx. 20 x 20 x 10mm / 0.79 x 0.79 x 0.39inch Package Included: 20pcs Metal Industial Sewing Machine Bobbin.Useful sewing machine part, easy to install and replace. - Material: Iron, high quality and durable to use.