V-SLOT BUILD BOARD KIT -- A sliding table made of aluminum alloy for linear actuators, a general linear gantry board, and a DIY widely used Slide Table Linear Actuator platform. DURABLE MATERIAL -- black anodized on the surface, with good wear resistance, heat resistance and corrosion resistance, and the solid structure makes it durable. 20-80MM ADJUSTABLE -- The installation distance of passive inert pulleys can be adjusted. Multiple rows of mounting holes can meet your equipment requirements. The minimum width is 20mm and the maximum width is 80mm. It has strong compatibility. RESERVED HOLES -- various standard hole sizes for belts, screws and other accessory options (see figure), various installation methods, suitable for any construction layout, and compatible with V-Slot linear guides. WIDELY USED -- linear actuator sliding table, manual sliding table, 3D printer, CNC Router, CNC engraving machine, for NEMA 17 linear guide assembly and other uses. It has a wide range of uses and can be expanded by itself. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Board Surface Treatment: Black Anodized Treatment Model: 3D printer V solt build board general white wheel Application: For opennbuilds general V solt build board 20-80mm/0.8-3.1in Colour:A: Black Material:Aluminum Package Contents: 2x V Solt Building Board