Thank you for viewing! This is a grommet punch used for creating escort cards for a wedding. I used it to fasten two sheets of thick paper. It worked fine with three sheets as well. (It requires a firm grip. I was able to do it with a woman's strength once I got used to it.) You need to pre-punch holes in the paper, but the included metal rod is difficult to use, so I used a single-hole punch I purchased from Cando instead. I'll include that as well. - Product Name: Grommet Punch - Included: Grommets, Instruction Manual, Metal rod for punching holes, Hole punch, Fastening hardware (approx. 65 gold, approx. 60 silver) - Size: For 4.5mm inner diameter *If you would like to purchase this with other wedding items, please comment! We can offer a discount for combined purchases. #EscortCards #Wedding