Heavyweight White Cardstock for Inkjet & Laser Printers (8 1/2" x 11") - 50 Sheets Heavyweight White Cardstock - 80lb Cover (216 gsm) Bright White Color - High 98 Brightness Rating Works on Inkjet & Laser Printers (Copiers too) Measures Letter Size 8 1/2" x 11" 50 Sheets per pack