For permanently imprint jewelry, fashion items, hobbies and crafts, door keys, marking tools, bicycles, equipment , etc. Goggles and gloves are recommended when imprinting. **Comprehensive Letter and Number Set:** The HimaPro Letter and Number Stamp Set includes uppercase letters A-Z, the character, and numerals 0-9, all with a 1/4 inch (6mm) character height. Achieve versatile and professional imprints for your projects. **Multi-Surface Permanence:** Imprint metal, wood, plastic, leather, and more with precision using this stamp set. Create lasting impressions on various materials for a range of crafting and identification needs. **Durable 40Cr Alloy Steel:** Crafted from 40Cr Alloy Steel with a sandblast finish, these stamps are harder and more wearable than carbon steel, ensuring longevity and consistent performance for your stamping projects. **Organized Storage in Wooden Case:** The character-indexed wooden case not only keeps the 36 stamps well-organized but also makes them easy to locate. Each stamp has its designated slot, preventing scattering and allowing for efficient storage. **Protected for Longevity:** The stamps come in plastic-coated packaging to prevent scattering and protect them from damage during storage and transit. Invest in the HimaPro Letter and Number Stamp Set for durable, organized, and precise stamping every time.