This is a set of four beige spools of size 60 sewing machine thread. These are "defective" items. Due to failing inspection, these products cannot be sold as regular merchandise and are being offered at a discounted price. The defects include stains, poor winding, and less than the standard 3,000m of thread. They are still perfectly usable as sewing thread, but please be aware of these issues before purchasing. Made of 100% polyester, each spool is approximately 12cm tall and 6cm in diameter, and can be used directly with home serger machines.