you receive 10pcs 1/ 4 inch one hole puncher with 100 pcs binder rings for school students; You can punch holes round shapes of hole punch to meet your flash cards punch hole needs; You can punch holes anywhere on paper, labels, or craft, bind the works you want to store the metal single hole punch can punch up to 20 sheets of paper at a time, but it is recommended to punch no more than 8 sheets; The diameter of the paper rings is about 1.25 inches, binding rings can hold multiple sheets of paper, e.g. 200 sheets of student notes, e.g. 150 sheets of business reports, e.g. 60 sheets of art portfolio paper the single hole punch with rings for classroom are made of solid metal, and not easy to rust; Align the paper to be punched at the punching position and the arm hard to punch easily; Put your fingers on both sides of the card rings and , the card rings can be opened smoothly; To close the card rings, just snap it back into place the head of the small one hole punch has a groove that automatically store confetti, When the confetti fills the card slot, open the card slot to pour out the confetti and clean it up in one you don't have to worry about the paper scraps falling around after punching single hole punch with binder ring for classroom can be easily put into pockets and backpacks, small and portable, convenient to carry anywhere you need, suitable for home, crafts, office or workplace, can be applied for paper, leather, plastic, PVC card, cardboard, etc., can also be applied for booking, greeting cards, making confetti and all paper materials Feature: The single hole punch is very practical and can be applied not only in classrooms and families, but also as a gift to relatives and friends This one hole punch can the talents of young people for booking, greeting cards, makingconfetti and all paper crafts Specifications: Hole diameter: 6mm Material: -plated Iron Size: 5.12 inches x 2.36 inches x 0.59 inches 10 single hole punches 100 Binder Rings Notes: Manual measurement, please allow slight errors on size Color: As shown Package Contents: 1*set hole punch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.