Ruby Paulina 11x17 Sheet Protectors Poly Archivable, 25 Sheets (556600) Holds 11" x 17" Paper. No creases or folds. Opening along the 11" Side near hole punched edge. Reinforced Holes Made from Archival Polyethylene Does NOT have Center "Crease" to fold in half. ^Holds 11" x 17" Sheets. ^3 holes with 4 1/4 " centers (Standard 3 hole spacing) on 11" side. ^Pocket Opening on 11" side. Side loading. Near Holes. ^Reinforced 3 Holes, Archival safe material. Heavy Duty Thickness.