DescriptionThese polishing tools are made of premium agate material, durable, professional, long service life, and provide a good experience. They are designed for professional polishing, suitable for polishing gold, silver and copper jewelry, and so on.Features-Color: Random Color -Material:Agate -Size: Approx. 7 x 2 x 0.5 cm / 2.75 x 0.79 x 0.2 inch - Made of premium material and fine workmanship, durable and long lasting use.- Use the agate to rub on the jewelry, so that your jewelry will be bright as new.- Light weight and compact size, easy to carry and store. - Grinding can add water or polish oil.- Essential tools for jewelers and bookbinders, both professional and hobbyist.