1、21 Holes: This binding machine adopts 21 holes comb style and manual punching. It can punch up to 12 sheets of 80g papers, maximum 200 sheets binding. 2、Effort Saving Handle: This wire binder machine is designed with sturdy grip handle which allows you to punch holes easily, saving your effort and time. 3、Adjustable Slide Margin: This punch binder features A4/A5/Letter size marks and adjustable slide margin, easy to adjust binding positions. 4、Easy Operation: This binder machine can be easily operated with only 2 steps, and labor saving handle simplifies operation. Strong metal structure and nonslip feet offers more stability and convenience. 5、Wide Application: This manual paper punch binder is ideal for punching and binding reports, documents, proposals, and papers. 1 x Binding Machine1 x Handle1 x Knob4 x Corner Protector1 x Anti Slip Pad2 x Screw1 x User Manual1 x Oil Removal Paper Item Type: Binding MachineMaterial: IronNumber Of Holes Punching: 21Hole Size: Approx. 3 x 8mm / 0.12 x 0.31in ( Manual Measurement, Slight Error May Exist )Hole Distance Range: Approx. 3 to 6mm / 0.12 to 0.24inMaximum Punching Capacity: 12 Sheets (A4 80g). 15 Sheets (A4 70g). 2 Sheets (Art Paper)Binding Capacity: Maximum 200 Sheets