Adjustable Holder Support Mount Fit For 55-80mm CO2 Laser-Tube Engraving Machine Specifications: Condition: new Color:Grey & Black Material: ABS Plastic & Rubber & Metal Size: approx.11.5x6.5cm(4.61x2.64inch)(LxW) Height: approx.10-16.5cm(3.94-6.50inch) Item included: 1 x CO2 Laser-Tube Holder Compatible With: fit for Dia. 55-80mm Laser-Tube How to use: Put four screws on the four oblong holes at the bottom of the tube bracket to fix it on a flat surface. Put the laser-tube and adjust the tube bracket to make the height of the laser-tube appropriate and form an angle of about 45 degrees with the reflector next to the light emitting end of the laser-tube. After adjustment, tighten all screws of the tube bracket. Features: The diameter of the tube is adjustable, suitable for laser-tubes with a diameter of 55-80cm, to avoid the tube holder not being universal; Use special plastic, the material is not aging, the laser-tube can be fixed firmly, and the optical for path is not easy to deviate; Lifting screw, easy height adjustment; simple installation; Note: 1) All dimensions are measured by hand, there may be small deviations. 2) Color may vary slightly due to the color setting of each individual monitor. Package included: 1 * Adjustable Holder Support Mount