CHENGYIDA 4-PACK Leather Craft Oval Shape Punch Hole Tools Leathercraft Puncher Tools DIY (27mm/36mm/38mm/47mm) Material: 45#Steel Size: 2*7mm/3*6mm/3*8mm/4*7mm Length: 10cm/4in(approx) Hollow punches make clean shape in gaskets, leather, plastic, rubber, vinyl, and other soft material Put the leather belt (or others) on the soft table before you punch the shape.