Except for the upper right, the yarn is Itoizumi's mottled yarn. The upper left is 2.2g, the lower left is 3.5g, the lower right is 2.8g, and the upper right is Daiso lace yarn No. 40, which is 5.8g. The orange-ish yarn on the lower right is a bit thinner. Only the backing of the lower left is plastic. This is a set of two shuttles. The shuttles are no-brand.