Positron Linear Rail Kit (Motion) 3D Printer

These are premium stainless steel rails (say goodbye rust!), designed to the Positron specifications of both pre-load, rail length, and hole distance. These rails include black carriage end caps to give a tasteful aesthetic. These rails will provide a wonderfully smooth glide - especially compared to the standard 'kit' grade rails out there.   Included are: X-Rail: MGN9C 227mm Y-Rail: MGN 12C 235mm Z-Rail MGW 9C 257mm  Note: if your rails come with grease on the rail, this is pre-applied mobilux ep2! This is not shipping grease!