Finally there is a storage solution for threads on spools or balls. This clear plastic Slimline Storage box has 64 tabs. You have the flexibility of organizing up to 64 spools of threads such as Kreinik, Londonderry, and Sulky. You can also get two balls of pearl cotton on one tab so you can see at a glance if you have the right size pearl cotton. The storage box can stand up near your work surface or closed to easy storage. This storage box works great for regular spools of sewing thread. You will have hours of fun getting organized! The box measures 15"w x 15"h with handle) x 3"w when closed. Made in the USA.