Gadget.Cool 8pcs Pack of 8 Mini Compact Grid Flash Card Binder Note Word Cards Pad Flexable Detachable Ring Deck Stationery(640 Counts) Compact size memo card for flash memory Binder ring makes it detachable, easy to manage 80 pages per deck, with 5mm grid Design for language learning, memo note, presentation Package includes 8 pack of word cards