Nickel free – allergy free, Single Prong Material: zinc alloy Measurement: external 2 1/4″ (57 mm) X 2 1/8″ (53 mm); internal 1 3/4″ (45 mm) X 1 5/8″ (41 mm) Will fit any belt 1 1/2″ to 1 5/8″ (40 mm) wide Fat prong fits oval holes of about 3/16″ X 5/16″ Descriptions Square center bar belt buckle for replacement. Available Finish: antique silver, antique brass and silver nickel free finish. Fits 1 1/2″ to 1 5/8″ (40 mm) wide belts with snap on features