These 4mm number stamps are excellent for personalising your leatherwork or Silver Art Clay. Small enough to permit the stamping of messages or addresses onto leatherwork such as watches or wallets, or delicate PMC such as pendants or bracelets, while being clearly visible. These outstanding tools are hard to find elsewhere. Get it today You won't be disappointed Chrome plated and made in Japan with quality materials, these outstanding stamps will offer a lifetime of use for a reasonable priceFor Leather: Simply case your vegetable tanned leather lightly with water using a high density foam sponge and wait a few seconds for the water to absorb before stamping your leather by striking the stamp firmly with a soft headed hammer.For Silver Clay: Swab the stamp head lightly with oil before gently pressing your stamp into wet PMC.Create a powerful impact with these stamps. Alphabet set also available. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin