Description: Kesote Multicolor Memory Word Cards with Metal Binder Ring in 6 Color Features:  ---6 different colors: light purple, light yellow, light blue, orange, green, pink.  ---You can make special mark according to different colors, easily sort cards by subject or class.  ---6 pieces metal binder rings allow cards to be added, removed, reordered.  ---When you run out the study cards, the binder ring also suitable for book, photo album,shower curtain.  ---These flip index cards are good size for you to carry by hands or put in your bags, easy and convenient to store.  ---All our product offer 6 months warranty time, contact us for any question on product. Specification :  Material: Natural wood paper  Product Dimensions: 5.6*9.8cm  Quantity: 6 study cards, 50 sheets per model, 6 Sets Package Included:  300 x Study cards  6 x Binder ring