40 pcs loose leaf binder rings with hole punch, sourceton office metal book rings 1 inch & 2 inch (each size for 20 pcs) and hole puncher sourceton <b>product description:</b><br><br> small punch offers precision, cutting an exact,1⁄4”hole every time.punches up to 5 sheets of paper at once.and use the rings to bind documents,or to link together a multitude of different materials.great for loose-leaf,memo filing,key rings,scrapbook,binding recipe,photos,book,sample book,scrapbook,contract or file.<br><br> <b>specification:</b><br><br> dimension:1 inch/25mm&2 inch/50 mm diameter<br> material:stainless steel<br><br>