MGN12 300mm Linear Rail Guide with MGN12H Stainless Steel Carriage Block - High Precision Linear Motion System for Ender 3, CoreXY, Tronxy, Delta Kossel 3D Printer Upgrades & CNC Machines | Perfect for 3D Printing, Laser Cutting, and Industrial Automation Applications

Features

Surface technology: Oxidation prevention by electroplating (chromium plating)

Rail Guide Material: bearing steel. Rail Length: 300mm (11.81")

Block: MGN12H ball bearing carriage. Block material: Stainless Steel. Blocks are pre-loaded

There are two rubber stoppers on each side of the linear rail, it can prevent the carriage block from falling out

Suggested to use M3 T nut and screws if you fix it to 20 series EU Al-profile