The Xerox Colotech+ A3 Super Smooth Paper 120gsm White 500 Sheets guarantees the optimum performance from your printer in terms of quality, quantity and runnability. 168 CIE whiteness. Impressive 120gsm thickness. Incredibly smooth finish helps cut down on printer jams. Size: A3. Superior whiteness allows for great contrast against the page. Very high opacity makes it ideally suited for duplex printing.