SRA22 The Dividers are made of translucent, pliable, plastic. Each set of ScrapRack Dividers contains 5 tabbed sheets. These dividers are cut larger than your storage sheets so if you are currently using "stick-on tabs" they will still work great in conjuction with these Dividers. We suggest using these Dividers for major category separations. They fit fine in your TravelPack and give added stability to your storage sheets helping to improve "Page Sag" and provide an extra layer of protection to your supplies.