Gutermann 10 Spool Thread Set of recycled 100 percentage polyester Sew all thread. 100m spools. All associated with this set, thread, spool, box, and ink, are made with recycled materials. Eco friendly and sustainable, rPET threads are great for general sewing, quilting, crafting, and for our planet, too This package contains ten 10 100m spools of polyester thread. Imported.