NOTE: Our MGNs are preloaded luminaires without preload. If you feel that the blocks are a little hard to move when you receive the product, please click the trolley to move it a few times, you can also use the grease on the rails or the trolley, it will be smoother.
1* MGN12 330mm linear rail guide
1* MGN12H Slide Block
Perfect size to add linear rails to your prusa mk series of printer.