Paper Corner Cutter Punch,Corner Rounder Punch for Scrapbook Supplies,3 in 1 (R4mm, R7mm, R10mm) Round Corner Cutter Rounder Purple

Note1. To sharpen the blade you can use thin aluminium foil paper to cut into the corner of the rounder2. To lubricate the blade you can use the corner rounder to cut wax paper several times3. For better cutting experience please make sure the thickness of the material is between 0.1mm 1 piece normal A4 printing paper and 0.4mmaround 4 pieces normal A4 printing paper4. Make sure the laminate corner flat and the edges are neat while using the puncher on laminate5. Do not use the puncher on soft and unflat material