Specification: Size: 82mm*45mm*145mm Material: Acrylic and Metal Suitable Engraver Model: 2-axis CNC Laser 6550, 4050, etc. Suit for laser model: Size -33mm/40mm/42mm Working Mode: Manual adjustment Package includes: 1 x Liftable holder 1 x Some screws Notice: The Package does not include the laser module.