This pack of 1000 Silvine Record Cards is ideal for revision notes, presentation notes, school or training exercises and much more. These plain white record cards are compatible with the Ryman 152x101mm (6x4 inch) index box, and can be used to store personal contact details, and other notes.Silvine Records Cards are great for home and office indexing, and everyday general use. . Silvine Record Cards. 6x4 inches. Plain white. Pack of 1000. Ideal for revision and presentation notes. Approximate dimensions (mm) H152 W101 D250