Amazon.com: ATOMSTACK X20 Pro Extension Kit - 20W Laser Engraver Area Expansion Kit for ATOMSTACK X20 Pro/S20 PRO/A20 PRO, Engraving Area is Expanded to 40 * 85cm, Longer Laser Engraving and Cutting
Amazon.com: Twotrees Laser Engraver Y-axis Extension Kit, Quick Assembly Laser Engraver Carving Area Expansion Kit with Full Accessories for TTS-25/TTS-55, Extended Engraving Area to 600x600 mm
Amazon.com: ORTUR Laser Engraver Area Expansion Kit, Extension Kit for ORTUR Laser Master 2 S2 Laser Engraver, Engraving Area is Expanded to 390 * 800mm(15.35 x 31.49 Inch)