Thread spool holders, firmly hold thread spools to keep thread from unraveling and loosing tension. Features: Made of good-quality plastic, and reusable. Organize threads and keep them tidy. Bobbin holders are easily to keep your bobbin thread match up with your thread spool and are helpful to storage all bobbins together neatly and avoid making a mess by accidentally. The soft cuddlers are easy to put on and remove from the spools, and create no space problem when used with spools stored on the rack. Thread organizers can make a wonderful and practical gift for anyone who loves to sew as a hobby. Easy to use for anyone.