【10 Hole Sizes】Preciva hole puncher with 6 sizes of puncher itself 2.0, 2.5, 3.0, 3.5, 4.0, 4.5mm. 6 sizes of extra punch set 3/4/5/6/7/8mm. 【Full Set for Punch Belts】The puncher use stainless steel V-shaped solid head for easier cutting.