With this eyelet punch from Fiskars you have 2 tools in one: one tool for punching and one for setting eyelets! On the coloured side there is a sharp punching hole, which you can use to punch holes in Paper, cardboard, Felt, fabrics and the like. With the grey side you pick up the eyelets and split them. Even firmer material can be processed, as the built-in spring hammer is strong enough. The set of 2 is for eyelets up to 3.2 mm and 4.8 mm. Since the eyelet holes can be placed freely with the punch, you can design your greeting cards individually or even provide fabrics with eyelets.