Size: Approximately 40 x 40mm This is a cute, round, smiling face (nicomark) shaped die. ^^ Ideally, a press machine is best, but if you don't have one, you can also punch it out by tapping. When tapping, it's better to use a rubber mallet. Place the leather on top of the die and tap with a rubber mallet or wooden mallet. The blade is sharp, so please be careful not to touch the blade.