the leather stamping kit includes 36 sets of numbers and letters stamping tools, leather punch tools, and a rubber hammer. With 26 Letters and 10 numbers. The letters and numbers stamp is 6mm/0.24 inch. The length of the leather punch tool is 3.66 inch.The length of the rubber hammer is 8 inche. Our letter and number leather stamping tools are crafted from robust zinc alloy steel, prioritizing precision and durability. Whether you're a seasoned leather or a beginner, this leather letter stamps provides the essential tools for personalizing and embellishing your leather projects. Our stamping tool set is also equipped with a rubber hammer, which is more convenient to use with stamping tools. The handles of our hammers are made of rubber with non-slip features for a comfortable grip. The rubber hammer is a double-sided replaceable hammer , which has good hardness. Before stamping, we need to use a sponge to absorb water to wet the leather; then use tape to stick the back of the leather to prevent wrinkles during stamping; finally, we need to place the punch tool plumb on the punching plate, and hit the bottom with a hammer until it is shaped. Best used for vegetable tanned leather with a thickness of more than 1.5mm. They are suitable for the decoration of handmade leather material jackets, suitcases, shoes, belts, purses, watches and wristbands. Warmest Reminder: 1.The product applies to Genuine Vegetable Tanned Leather only; 2. the leather wet and soft for better embossment effect; 3.Putting the leather on Metal or Rubber Pad is suggested; 4.Paying attention to the direction of the stamp; 5.Relax, enjoy leather D.I.Y. Stamping Heads Size: 0.31x0.39 inch Letters Size: 6mm / 0.24 inch Rubber Hammer Length: 8 inch Package Included:1 x Stamping Handle, 26 x CapitalLetters Stamping Heads, 10 x Numbers Stamping Heads, 1 x Rubber Hammer Colour:As Shown Material:Plastic+Metal Package Contents: 1 set x Leather Stamping 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.