Feature:1. Perfect Support: Our heightening column can achieve perfect support and make guarantee for the stable operation of the engraving machine.2. No Deformation: This engraving machine heightening column can do no deformation, no shaking, so that your use experience is enhanced.3. Head and Tail Splicing: Our heightening column can be head and tail spliced to support the height you want, which is convenient to use.4. Use Scenario: Our heightening column can be used with Y axes roller carving module (not included), which is perfect for use in garages, production workshops and stores.5. Aluminum Material: This heightening column is made of aluminum alloy, which is light weight, easy to install, wear proof and sturdy.Specification:Item Type: Engraving Machine Auxiliary Heightening ColumnMaterial: Aluminum alloyHeight: Approx. 50mm / 2inOuter Diameter: Approx. 20mm / 0.8in.Package List:12 x Heightening Column4 x Non Slip Pad4 x Screw4 x Nut1 x Silicone Pad(4Pcs)Note:Manual measurement may have error. Please make sure you don't mind before ordering.