1.50" x 1" x 16g 14/20 double clad gold fill This is a stamping blank washer. Washer specs are: Outside diameter is approx. 1.50" (approx 38.1mm) Inside diameter is approx. 1" (approx 25 mm) 3/16" stamping space (approx 4.77 mm) material thickness - 16 gauge