This product in display is Steel Dapping Block Round Shaped Cavities, which is used to form various shapes with flat sheets of soft metal or bendable material. Made of High carbon steel .It great for jewelers and hobbyists. The dimensions are 1.5 x 1.5 x 1.5 inch .Steel Dapping Block Sqaure Round Cavities 1.5 x 1.5 x 1.5 inch - Doming Block Square Jewellery Making Bench Tool.PLEASE CLEAN AND APPLY OIL BEFORE USE. Note: Remember to wear eye protection. Note: Photographs are for illustration purpose only. Actual item may slightly differ from the pictures shown.