???Features???- Stamp kit for creating permanent hand-stamped imprints, perfect for personalizing jewelry and other items, compact size box, won't take up a lot of space. The character width of the seal is 8mm / 0.31-inch. ???Material???- Made of high quality 45# steel with high-frequency heat treatment have high hardness for strength and hardness. These attributes reduce wear outs and insures these stamps are long lasting, look beautiful and keep hands clean. ???Good Starter Set???- The operation is simple and easy to learn, manual stamping requires only a few tools and consumables to get started. The quality of stamping punch tool is well made, which doesn't require a hard "strike" to stamp metal. ???Wide Application?????? Metal stamps can be used on various materials, Great for permanently marking metal marking needs, jewelry and art on leather work, wood materials. Use with a basic hammer to permanently engrave names, addresses and other sentiments onto all different types of mediums. ???Package Contents???- Featuring eight numbers (Note: an upside down 6 can be used as a 9), this set is ideal for jewelry and fashion projects, hobbies and crafts, organization, and marking tools, bicycles, and equipment to help prevent loss or theft.