Features: General Usage:Great for permanently marking metals, plastics, leather and wooden items. Use with a basic hammer to permanently engrave names, addresses and other sentiments onto all different types of mediums including jewelry. Durability:All stamps and contents are made of good quality chrome vanadium steel for strength and hardness. These attributes reduce wear outs and insures these stamps are long lasting. Organized Storage:Every stamp is securely organized in easy to find hard shell carrying case. All stamps are securely fit in a compact easy to carry box. The strong plastic top opening box is also easily stored. Precision:Every stamp is precisely machined to ensure all stamps are of the same size. In addition, all stamps are manufactured to be clear and legible upon use. The casing houses all the stamps into a single location under a hard and durable plastic. Customer Service: With customer satisfaction as our first priority, we offer a satisfaction service for all of our merchandise. If you have any problems, please contact us in time. We will give you replies as soon as possible. Specification: Material:Steel Number Size:3mm/4mm/5mm:59*6mm,6mm:63*8mm,8mm:10*65mm Letter Size:3mm:6*58mm,4mm:59*6mm,5mm:59*7mm,6mm:63*8mm,8mm:65*10mm Include: 1 set Stamp