Photo 1 of 2PCS 8mm X 500mm Linear Motion Rod Shaft Guide with 4 PCS SCS8UU Ball Bearings & 4 PCS SK8 Aluminum Rail Support, Linear Motion Rod Guide Set for CNC and DIY Craft Tool (Diameter 8mm, 500mm) Diameter 8mm 500mm

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Photo 1 of 2PCS 8mm X 500mm Linear Motion Rod Shaft Guide with 4 PCS SCS8UU Ball Bearings & 4 PCS SK8 Aluminum Rail Support, Linear Motion Rod Guide Set for CNC and DIY Craft Tool (Diameter 8mm, 500mm) Diameter 8mm 500mm