Self(regular) close, variable overlay (face mount) hinge, in Nickel Plated The CENTER to CENTER screwhole dimension for the hinge wing is 2-1/8"(54mm) Face Mount Overlay (Variable). Hole Center to Hole Center. 54 mm ~2-1/8" Package Include: 6 pair (12 pieces) hinges, all necessary mounting screws Money Back Guarantee. 100% SATISFACTION: If you don’t love your hinges for any reason, let us know and we will refund your money or send you a replacement.