Amazon.com : 144 Pieces Plastic Binder Rings Plastic Loose Leaf Rings Multi-Color Plastic Book Rings Flexible for Cards, Document Stack and Swatches Organization School Home, or Office Use, 6 Colors (27 mm) :
Amazon.com : 200 Pieces Plastic Loose Leaf Rings Multi-color Binder Rings Office Book Rings with a Box, 1.1" Flexible Book Rings for Scrapbook Cards Notebooks Key Chains Document Stack School Home Office,