CNCMANS Linear Guide Rail 2 Pieces SBR20-800mm Stainless Steel Guide Rail with 4 Pieces SBR20UU Linear Bearing Block, CNC Parts for 3D Printer Stepper Motor (linear guide SBR20 800mm)

["This linear rail set includes 2 pieces of 800 mm long rail shafts and 4 SBR20UU blocks. The slide block is used in conjunction with the rail, and the internal linear bearing ensures smooth gliding.", "The shaft of the linear guide rail is made of high-quality carbon steel, and the bearing block is made of an aluminum alloy, which is sturdy and durable. Surface silver plating, beautiful rust protection, long-lasting.", "Support rails made of aluminum alloy with pre-drilled holes are easy to install. The linear optical axis made of stainless steel can guide the bearing for linear movement. Easy to install and requires no maintenance.", "Suitable for most machine tools and precision machines, durable and low-noise.", "Our store has its own warehouse in Germany. Shipping from the German warehouse, you can receive the shipment quickly."]