Features: 1Perfect Support: Our heightening column can achieve perfect support and make guarantee for the stable operation of the engraving machine. 2No Deformation: This engraving machine heightening column can do no deformation, no shaking, so that your use experience is enhanced. 3Head and Tail Splicing: Our heightening column can be head and tail spliced to support the height you want, which is convenient to use. 4Use 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. 5Aluminum Material: This heightening column is made of aluminum alloy, which is light weight, easy to install, wear proof and sturdy. Item Type: Engraving Machine Auxiliary Heightening Column Material: Aluminum alloy Height: Approx. 50mm / 2in Outer Diameter: Approx. 20mm / 0.8in Package Included: 12 x Heightening Column 4 x Non Slip Pad 4 x Screw 4 x Nut 1 x Silicone Pad(4Pcs)