Twotrees 3d Printer Laser Engraving machine Y-axis Rotary Roller Engraving Module for Engraving Cylindrical Objects - Micro Center
Z Axis Module Adjustment Holder For 33mm 40mm 60mm Laser Module 2 axis Laser Engraver Adjust the Laser Height
Amazon.com: Laser Rotary Roller, Laser Engraver Y-axis Rotary Roller Engraving Module for Cylindrical Objects, Compatible with Most Kinds of CNC Laser Cutter and Engraver Machine, 3D Printer Accessories