Designed with a poly front cover, these index cards are built to keep your notes safe and looking fresh, whether in class, at work, or on the go; Assorted colors make it easy to color code. POLY COVER: Designed with a poly front cover, these index cards are built to keep your notes safe and looking fresh, whether in class, at work, or on the go; Assorted colors make it easy to color code. ELASTIC BAND: Elastic band ensures that all your note cards stay neatly in one place by preventing any loose cards from slipping out or getting lost, perfect for keeping notes ready and easy to access. STURDY RING; Notecards with ring holds index card together in one place so you can quickly flip through without them getting scattered or disorganized; perfect for quick reference and study sessions. RULED LINES: Flashcards are lined on one side and blank on other, allowing you space to maintain structured notes; great flashcards for studying, to-do lists, recipes, presentations, notes and more.