Plain type, 12 pieces These were used to wind industrial thread. They are very hard paper cores. Approximate size: Height: 17 cm Top diameter: 1 cm Bottom diameter: 6.7 cm Suitable for rewinding thread, Saori weaving, yarn, knitting, and of course, various other uses such as handmade crafts and DIY projects. There may be some thread scraps remaining. There is a sticker on the inside. Large quantities are also available! We also have big sizes and round types, so please inquire. Shipping via Yamato Transport or Yu-Pack. We will ship according to our convenience, so please comment if you have any preferences (*^^*) #nonrecycle #noncraft #saoriweaving #craft #knitting #threadwinding #threadcone #conewinding Yarn rewinding