Description: 【High Quality Material】: Optical Microswitch Linear Guide Rail is made of high quality carbon fiber material, which is durable, wear resistant, and high temperature resistant. 【Fitment】:Optical Microswitch Linear Guide Rail for 2.4 3D Printer. Professional accessories】: Replacement of optical micro switch preload linear guide, exquisite workmanship 【Easy to Install】: Professional installation method is recommended, light weight and easy to install. 【3D Printer Accessory】: Optical Microswitch Linear Guide Rail is a practical printer accessory, temperature resistant: 70 to 100°C, and can be printed on build platform. Specification: Precautions: 1) Pay attention to using the linear rail groove tool when installing the linear rail. Do not slide the slider and cause the ball to be lost. 2) When installing by yourself, make sure the installation is aligned, ensure that the slider can slide smoothly, and the tap PCB can be triggered. 3) When installing the , the upper holes of the Toolheads should be aligned with the carbon fiber threaded holes to avoid tightening the screws too hard when misaligned, causing the threaded holes to be damaged. Size Chart: Packing size:10.5cmx7cmx5.5cm/4.13inchx2.76inchx2.17inch Package Includes: Optional: style A:1 Optical Microswitch Linear Guide Rail(with stainless steel rail) or style B:1 Optical Microswitch Linear Guide Rail(with silver wire rail) or style C:1 Optical Microswitch Linear Guide Rail(without rail) Note: Please allow slightly errors due to manual measurement and different monitors.