If you need disposable bearings these are for you. Not only are the parts low quality, they are non-refundable if you find they don't fit your regular 8mm lead screws.
Goodyear Ultra Grip Ice SUV 235/65 R17 108T winter
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Iverntech MGN12H Linear Rail Guide With Stainless Steel Carriage Blocks - 700Mm Length For 3D Printer And CNC Machine
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