The leather sewing dowels are made of high-quality durable metal, which is anti-corrosion, rust-proof, and long-lasting. Each leather stitching pin features a knurled base for a secure grip. Needles and rings are constructed from stainless steel bar stock with a smooth exterior for easy removal.Specifications: Two different sizes of leather tooling needles. Long needle measures 18mm (0.7in), suitable for locking leather edges with a thickness of 6-12mm. Short needle measures 12mm, suitable for locking leather edges up to 6mm thick.Easy to use: Simply pull the base outward to remove or insert the retaining pin. Do not force the fixed pin out, as this may damage the connection between the ring and the pin.Uses: Leather suture positioning pins are designed to hold stitches in place when handcrafting leather goods. Each pin includes a brass protective tube with a pull-out end cap to ensure safety and secure placement.Color: Gold Material: Metal Package Contents: 5 x Positioning Needles for 6-12mm leather thickness 5 x Positioning Needles for 0-6mm leather thickness Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual item. Measurement error allowance is +/- 1-3cm.