These heavy-duty clear plastic sheets are perfect for the Spinner Rig Storage Cards. They load from the middle for secure storage. Each sheet holds 10 cards. Works with any standard 3-Ring Binder.
RECOMMENDED: We don't sell the 3-ring binder, but we recommend using a zipper binder (sometimes called a portfolio). 1-3" works well and back to school time is a perfect time to find the binders cheap at Wal-Mart or Amazon.