Main function: can be applied for binders, notes, cards, keys and so on, help to keep your items organized, suitable for home use, office use, and school use Assorted colors: 6 different colors included, vivid colors can help to distinguish items and also lighten up your moods, easy to use and keep securely closed Durable material: made of quality metal, durable and sturdy, not easy to bend or rust, can last for a long time use, durable material ensures it can hold lots of items Binder rings measurement: the binder ring size is 3 cm/ 1.18 inches in diameter, proper size for use Package includes: 60 pieces of colorful binder rings, 6 colors, each color has 10 pieces, enough quantity for your use; Colors: pink, yellow, green, blue, purple, light coffee color