144pcs Multi-color Prewound Bobbins Size A 40S/2 Thread for Sewing & Embroidery

Multi-color Prewound bobbins, S. These bobbins are the standard size A, Class 15, Style 15J, SA 156, plastic sided, super quality 40S/2 spun polyester thread also improve the embroidery quality. 144pcs bobbins per box.