Patent No.: US 12,151,493 B2 More paents are pending,This is the second-generation product, with storage and alignment ruler functions. Its automatic magnetic design offers quick use and precise positioning, while hiding neatly within the box when stored. It is compatible with LEGO bricks, enabling versatile use. Our oil-free rust-proofing prevents hands and items from getting dirty, making it popular among jewelry designers, craftsmen, and hobbyists. A great companion for makers and artists. With electroplating and rust resistance, this 3mm letter stamp set is perfect for artisans, jewelry designers, and leathercraft professionals. Includes all English letters (A?Z), numbers (0?9), the " " symbol, and two reusable alignment blocks for accurate stamping. Complete 36-Piece Set with Alignment Tools Includes 36 stamps (A-Z, 0-9, ""), built-in alignment tools, a durable storage box Built to Last Assembled and Quality Inspected in the USA Crafted with premium materials and hardened to HRC 62 for clean, deep imprints. Assembled and final-inspected in California for reliable, long-lasting performance. . Precision Tonosho Alignment Grade B Each stamp is perfectly centered and uniform in size, meeting Tonoshos Grade B alignment standardideal for clean and consistent layouts. Modular Design for Thicker Materials The alignment tool can be combined with LEGO blocks to increase stamping height, allowing use on thicker materials like wood or clay. Versatile Beginner-Friendly Perfect for metal, plastic, wood, leather, or clay. Great for DIY gifts, crafts, jewelry, and custom engravingideal for both hobbyists and professionals.