Letter size: 8-1/2"H x 11"W Paper weight: 20 lb. 96/108 US/Euro brightness rating White Colorlok™ technology- produces sharp results in any business machine Our brightest multipurpose paper for laser and inkjet prints and copies Produces sharp results in any business machine Recommended for black-and-white copiers; suitable for other printers and copiers Blacks are bolder, colors are more vivid and you Carton contains 10 reams; 500 sheets per ream