3mm Oval shape Hollow Hole Punch Cutte Leather Belt Watch Band Gasket Tool Material: Metal Color:Nickle Size: 3 X 6mm (0.11" X 0.23"),3 X 8mm (0.11" X 0.31"),3 X 10mm (0.11" X 0.39"),3 X 12mm (0.11" X 0.47") Quantity:One Set(4 Sizes) Hollow punches make clean shape in gaskets, leather, plastic, rubber, vinyl, and other soft materials.