The leather sewing dowels are made of high-quality durable metal, which is anti-corrosion, rust-proof and durable. Each leather stitching pin is . Its base is knurled and non-slip. Needles and rings are stainless steel and made of bar stock with a smooth exterior for easy removal : 2 different sizes of leather goods tools, long needle 18mm/0.7in, suitable for locking leather edges with a thickness of 6-12mm/2.4-4.8in, short needle 12mm/2.4-4.8in, suitable for locking 0- 6mm/0-2.4 inch thick leather edge. Easy to use: just pull the base outward to remove or insert the retaining pin. (Do not take out the fixed pin by force, it will easily cause the solder joint between the ring and the pin to fall off) Uses: Leather suture positioning pins are used to fix sutures when making leather products by hand. With positioning function, each leather splicing positioning pin is . There's a brass protective tube with a pull-out end cap to keep fingers safe and hold everything in place. Color: gold material: metal Package Contents: 5 x Positioning Needles Stitching 6-12mm 5 x Positioning Needles Stitching 0-6mm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.