1. Small and portable, double-roller automatic rotation 2. Equipped with R3 rotation axis, 360-degree cylindrical rotation engraving, intelligent software interaction, synchronous engraving 3. Suitable for large, medium and small objects, bearing 3kg, easy to complete carving without deformation 4. Carrying large-area objects, no need to manually adjust the distance 5. The diameter of the roller is 3.2cm, the axis is closer, and it can rotate 5mm objects 6. With D2/D3 laser engraving machine, use 12V power supply to connect 7. Dimensions: 13 x 20 x 5.3cm 8. Weight: 1.16kg 9. Note: The product only includes the rotating shaft, not including other