Amazon.com: xTool D1 Pro Extension Kit Accessories for Both xTool D1 and D1 Pro 5W/10W/20W Laser Engraver, Expand The Laser Engraving Area to 36.85''*17'', Longer Laser Engraving and Cutting for Laser Engraver
Ortur Extension Kit for k40 Laser Master 3 Series (ETK2.0)