The size these card inserts is 148x15mm. Card insert for 330mm Twinlock Crystalfile extra lateral file. Suitable for hand-writing, typing or feeding through a laser printer. Easy to remove from tab to change file name. Ample space to accommodate long file names. 14.8cm width, 1.5cm height before folding. Packed 25 inserts (plus spares). Colour: White.