I absolutely love this product. This caddy has three different compartments. All three are different size with a lid that locks so nothing can fall out. The best part, they are clear, and you can see what is inside. The handle makes the caddy portable. You can move it from the Caddy Wheel Base to your desk where you work. Mine is filled with washi. I love that I can take just one compartment out, the one with my favorites inside, and have it right next to me while I work. If you have more than one Caddy, you can stack them on top of each other. If things get full and heavy, you can get a Deflecto - Stack 'n Go - Caddy Wheel Base. In addition, I think these are perfect for a teacher filled with their favorite goodies and supplies.