Description Agate Burnisher 6’s square shape has one flat side that can burnish flat gilded surfaces and rounded corners that could be used for convex edges of a similar angle. This product has a flat agate stone that is strongly secured to a wooden handle. The agate stone itself has been finely polished to provide a great quality burnish. Agate Stone Length (approx.): 1 inch (2.54 cm) Overall Length (approx.): 9  5/16 inches (23.6 cm)   For other agate burnishers, select from the links below: Round Shapes Dog-Tooth Shapes  Flat Shapes Pointed Shapes