This Bracelet Mandrels are hand polished to provide a higher degree of surface finish. Tangs measure 1-3/4" long x 1-1/2" wide x 1-1/4" high approximately. Can be clamped in a bench vise. The overall length of the Round is 10". Four 2" long steps in the diameters: 2-1/2" (55 mm) 2-3/8" (60 mm) 2-3/16" (63 mm) 2" (51 mm) The overall length of the oval one is 9". Four 1-3/4" long steps with sectional dimensions of: 2-1/2" x 2-1/4" (63 x 57 mm) 2-1/4" x 2-1/16" (57 x 52.5 mm) 2 x 1-13/16" (51 x 47 mm) 1-3/4" x 1-5/8" (45 x 41 mm)