Absolutely, positively the PERFECT container for all those round spools of Ribbon Floss or Slik Ribbons (I always roll my silk ribbons around small spools to keep the kiinks out) that are currently rolling around somewhere in a drawer or box.   Each cube will hold approximately 20 spols of Ribbon FlossThese taller containers also hold the rectangluar packets of Velour. You can store Rainbow Gallery cards in these as well. Imagine all of your cards of Neon Rays, Flair, Splendor, Fyre Werks, Elegence, Designers Dream, etc. all organized in these bright, cheery, colorful containers. The containers are made of tough acrylic plastic-colored tops are completely removable.  These Stash Keepers are super sturdy and best of all, they are STACKABLE!