Oxford? JustFlip-it Punched + Perfed Study Cards, 3x5, PK900, Oxford, Mfr#: ESS63506

The new fun and convenient must-have study aid – great for learning Vocabulary, Math, Science or any subject! Study cards are pre-punched, to use with the enclosed binder ring, and perforated. Use as full-size or half-size cards. Each pack includes 75 cards and a binder ring. Sold as 12 packs for 900 cards total.