Our Leather template Tools are designed to provide precise and accurate measurements, making your leathercraft projects effortless. Round corner template ruler:use for bags-corner,wallets-corner, and other leathercraft projects circular arc corner design and cutting. Template has twelve commonly size marks for arc corners(R3 R8 R9 R12 R14 R15 R16 R18 R20 R22 R24 R28) Leather Template Ruler made of magnetic stainless steel,The surface and edges are carefully sanded and polished,ensures durability and long-lasting use. Type:A:Round Corner Template Ruler, Colour:Silver Material:Metal Package Contents: 1 * Leather Crafting Tools 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.