this is a great way to get a variety of neutral colors of silk buttonhole twist for an affordable price - about $4/bobbin regular price. there is at least 22 yards of material on each bobbin (often 23-24 yards) - about the same that is on the YLI silk buttonhole twist for over half the cost. colors include: white, black, dark navy, dark taupe, chocolate brown, slate blue, and charcoal. the collection arrives with a color key and bobbins are marked with colored stickers so you can easily distinguish between colors. free shipping, united states only.