Lettermark Punched & Perforated Papers with Perforations every 3-2/3" - White - 92 Brightness - Letter - 8 1/2" (215.90 mm) x 11" (279.40 mm) - 20 lb (9071.85 g) Basis Weight - 75 g/m² Grammage - Sustainable Forestry Initiative (SFI) - ColorLok Technology, Micro Perforated, Acid-free - White -