<b>Specifications</b><br/> Free gift: 100 x 3/8'' PVC comb Bindings 21 Ring<br/>Punching Capacity: 12 Sheets (A4 80g)<br/>Binding Capacity: 450 Sheets (A4)/ up to 51mm plastic ring<br/>Hole Size: 3*8mm Rectangle, Totally 21<br/>Customize the paper margin : 3mm/4mm/5mm<br/>Ideal for: A4 document paper<br/>Machine Size: 14.5*10.2*9.2 Inch<br/> <b>Important Tips!</b> <br/>MAKEASY Paper Binder comes with oiled cutting blade for high-quality paper cutting. To avoid staining on paper, please use a paper tissue to clean the blade before first use.