Description Agate Burnisher 11 has an agate stone that is a very narrowly tapered tip specialized for fine grooves and indentations. As this agate stone is very thin, it is advised to be careful with the amount of pressure used when burnishing. All agate burnishers are highly polished agate stones affixed onto a a wood handle with a steel (or similar metal) ferrule. These tools will allow for its users to burnish properly gilded gold leaf to a a shine. Agate Stone Length (approx.): 1  1/2 inches (3.81 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