Dual Y Axis Linear Guide Upgraded Kit Double Guide Rails MGN9H for Ender3 S1/Ender3 S1 Pro 3D Printer Replacement Part

Made of high-quality metal material, durable, firm and has a long service life. Dual Y axis structure, smooth and stable operation, reduce the leveling difficulty and leveling-time. Easy and simple to operate and use, no other tools needed. To upgraded the 3D printer into dual Y axis type, greatly improve the stability of the printer. There are stoppers on each side of the linear rail, it can prevent the carriage block from falling out.