Feature: Width adjustment: 3 grades, 0 to 30mm Engraving cylinder diameter: 30~200mm Engraving cylinder length: 195mm Motor model number: for NEMA17 42 x 34mm 1. No installation, no adjustment, to use after unpacking. 2. Roller protruding design, no obstruction, length of engraved objects. 3. Applicable to 95% of engraving machines on the market. 4. Concentric design, adjustment-free timing belt,and the motor is not exposed, . 5. Engraving: cylinders, small diameter cylinders, over-length plate engraving, over-length plate cutting. ROUND SURFACES This axis table attaches to your Laser-engraver machine, allowing you to 360-degree engravings on round or cylindrical objects such as cups, bottles, pipes, bowls, drums and tubes etc. It features an upgraded NEMA 17 made of corrosion-proof iron and aluminum. Color: black Material: metal Package Contents: 1 x Roller 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.