1. Material The Leathercraft leather material firm base is constructed from metal with a nonslip design. The base is made of stainless steel, a durable metal that resists corrosion and rust. 2. Features The positioning needle for cortical seams is meticulously crafted. Its base features a knurled, nonslip texture. Both the seam needle and needle ring are made of stainless steel, rodshaped material, with a smooth surface for easy disassembly. 3. Usage The leather stitching positioning needle is designed to secure the seam line during handcrafted leather product production. It serves as a precise positioning tool. The needle includes a metal protective tube with a pullout end cap to prevent finger injuries and keep all components securely in place. 4. Sizes for Various Needs The standard leather seam positioning needles measure 12 mm, suitable for locking leather edges with a thickness of 0–6 mm. The longer 18 mm needles are ideal for leather edges with a thickness of 6–12 mm.