For those who know that every moment of their work is relevant and essential. Exceeds expectations of the most demanding customers. Innovative approach to all your office paper needs. Specially engineered to combine both your 20 lb. and 24 lb. office paper requirements and delivers the highest printing resolution in all office environments. Printing contrast allows the reproduction of vivid colors in all printers. 171 CIE Whiteness Rating. For each carton of Pioneer paper purchased, a donation will be made to City of Hope for the fight against breast cancer. A minimum commitment of $25,000 will be awarded to City of Hope in 2012. This product was made from wood that came from a certified managed forest. Size: 8 1/2 x 11; Paper Color(s): Bright White; Paper Weight: 22 lb.