This hand sewing divider from Oka, manufacturer of premium leathercraft tools, is made of high-quality tempered steel which is tough and wear-resistant. This tool also has a knurled handle to allow you to get a better grip and control when using it. Available in various sizes (each sold separately) and engraved on the handles are the sizes of each of the tools so you can easily distinguish one from the other.Make crease along edges, decorative lines for tooling, or guide for punching stitching slits with this hand sewing divider. This tool is easy to use and is great for your leather wallets, belts, handbags, and more.Available sizes (each sold separately):• 2.5mm• 3mm• 3.5mm• 4mm• 5mmThis listing is for the Oka 3.5mm Leather Edge Stitching Groover Creaser only. Photos showing other materials are for illustrative purposes only.Keep out of the reach of children.