This is an aluminum gantry crane for 3D printers, which has undergone precision cnc machining and anodized surface treatment. Exact size. CNC aluminum production contains rigidity and is very lightweight, which is almost 20g less than the old print. This product reduces weight while reducing vibration. It can help 3D printers in high quality while achieving faster printing. Compatible with VzBot 3D PrinterItem Type: Bracket (Support)Color: BlackMaterial: Aluminum Package Content:2 x Aluminum CNC Gantry MachineOnly the above package content, other products are not included. Note: The light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.