Feature: Instructions: First book (wood) on the ground, and then want to punch object on the books,and then fixed-hand punch, The other holding a hammer,continued banged in a position to fight,until penetrated object. Specifications: Product name: Belt hole puncher Material: Steel Color: Silver Round mouth dia size: 1.5mm/0.059in 2mm/0.079in 2.5mm/0.098in 3mm/0.12in 3.5mm/0.14in 4mm/0.16in Quantity: 5 Shape: Round mouth Package Include: 5x Belt hole punchers Note: 1.Please allow 0.1-0.3cm differences due to manual measurement, thanks. 2.Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100% the same.