This is a great Magnetic Pewter clasp for making great leather jewelry. It is 25 mm in size. You can use a combination of different widths of leather. Combining four styles of 5 mm leather, two styles of 10 mm leather, or mix and match various widths of leather to create you own unique leather jewelry style. The magnetic clasps are easy to put on and take off. The are great. Check out our other findings and jewerly supplies for leather and leather findings, toggles, clasps, sterling silver findings and a whole lot more. Thanks for using our beads and findings in your jewerly. Make the world a more beautiful place, Make jewerly.