1.750" x 1 3/8" x 16ga 14/20 double clad gold fill This is a stamping blank washer. Washer specs are: Outside diameter is approx. 1.750" (approx 44.45 mm) Inside diameter is approx. 1 3/8" (approx 34.93 mm) 3/16" stamping space (approx 4.77 mm) material thickness - 16 gauge