Mushroom hole 4-hole puncher Metal structure with positioning ruler DIY creative notebook punching 4 holes meet the binding needs of 3-inch 1-grid card book inner pages DIY your own notebook, align the paper and put it in the bottom, press and punch to complete<br><br>Convenient plastic paper scraps bottom pad, collect paper scraps, non-slip and stable, protect the desktop Note: Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:Photo Color Material:plastic<br><br>Package Contents: 1 x 4 Holes Mushroom Holes Puncher<br><br>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.