Feature: 20 Pack Design Stamps,including flower,leaf,moon, round dots,triangle, yin-yang symbol，irregular wave,and 20 different patterns, Made of Electroplated Hard Carbon Steel, Durable and Clean, Reduce wear outs and insures these stamps last long, Look Beautiful On Your Workbench And Keep Hands Clean Easy To Press Into Materials Such As Aluminum, Pewter, Alkeme, Copper, Brass, Nickel, Silver, Wood, and Leather, UNIQUE AND TIMELESS Font For Your Unique Projects And Crafts Usage instrutions: 1.Put the material into the plaster moldbowl,by welding machine suit or tiger skin suit before heating the mold, heating the raw material and add a little borax. 2.When the gold and silver to complete melt, become optimum flow state , use die sludge depressed quickly . 3.After one minute of gold and silver and other liquid solidification. gently tapping the plaster mold with a hammer, plaster mold until the crack. 4.Removed the jewelery blanks.Wash in the ultrasonic cleaning machine, use a hair to clean the gypsum powder. 5.Jewelry finishing shape (chain type need to be welding), Finally, deal with the gold drum by agate polishing machine or hand-polished. 6.K gold and silver with a cloth or buffing wheel hanging mill fight , Complete production of finished jewelry. 7.The stamp punch tools are for jewelry production process pattern, so that the texture is more beautiful appearance jewelry. Specification: Material: steel Color: as picture shows Size: approx. 6mmx60mm/0.24"x2.4" (Diameter*Length) Pattern Diameter 4-5mm/0.16"-0.2" Quantity: 20pcs per set Note:1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(with retail package): 20 Pcs x Punch Stamps.