This metal thread holder rack can not only hold the spools, but also can hold many other different things, like jewelries, keys, umbrellas, rings, handbags, scarfs, towels, spatulas, etc. The wall hanging holes are in the back of the metal thread rack, you can use them to mount the spool organizer to the wall directly. The beveled design, round corner design and smooth edges of the thread rack can protect your body from scratching and are very safe for kids. This thread organizer is very useful. They can be widely used in your house and office. Details: Black 1" x 12.4" x 16.14" 6.78 lb. Set of 4 Designed to hold 54 spools of thread each Round corner design and smooth edges Wall-mountable Made of metal