Set Contents: Heart-shaped punch set of 3 (15mm, 30mm, 50mm) Material: Iron This is a set of 3 heart-shaped leathercraft punches. You can use them to create original designs for wallets, business card holders, smartphone cases, etc., and they are suitable for a wide range of users, from beginners to advanced crafters. The product has sharp parts, so please store it out of the reach of small children. When punching holes, place the material on a sturdy surface such as wood, lay a cutting mat on top, and strike with a shockless hammer, etc.