Pack of 50 Large Plastic Floss Bobbin Keys and Stickers. New and improved design has a built in push-out tab which can hold the number sleeve off the floss skein as shown on the label, or you can use the adhesive stickers, or sticky labels, to write your own number label, a softly curved top, and two diagonal slits to hold the ends of the floss. Use these sturdy plastic floss holders to wrap your floss and larger threads like pearl cotton around. 2¼” tall and 2” wide. Also known as bobbins, floss holders, flossies, floss winders, floss drops, thread drops or threadkeepers. Made in the USA.