Universal Slimline Storage Boxâ„¢Perfectly organizes, stores, carries, and displays your threads.Spend your time creating the projects you love to work on-not hunting for another spool of thread! This handy storage box organizes up to 64 large and small Sulky® Snap-end Spools, plus it accommodates the next smaller and larger size spools of most major brands, including Madeira. Easily organize your spools by placing the included marking strips on the channels that run between the spool holders, then load the spools onto the spool holders in your desired order, and write the corresponding numbers next to each spool. All of your spools are kept clearly visible and easily accessible. When you need a spool, simply remove it with the exclusive lifting tab. The tabs also keep your spools from falling out of the box! You can use the box in a freestanding position and keep it partially opened next to your machine for easy access to your thread. Or, hang your box on a wall near your work area and keep it fully opened. Box measures 14" x 15" with a depth of 3".