The product is a 20 pack of 127x76mm flash cards, with each pack containing 50 sheets of paper. This set includes a total of 1000 sheets across all 20 packs, in 10 different colours. The flash cards come with 1000 flashards and 20 binder rings included, featuring a multicoloured design. The cards are made of paper with a length of 12.7 cm and a width of 7.6 cm, making them suitable for sorting and storing records with the help of the binder rings. The brand UNGFEI offers a convenient and practical solution for revision and study purposes.