GUWANJI Linear Rail 2 PCS SBR20-2000mm Linear Slide Rails and 4 PCS SBR20UU Square Type Bearing Blocks, SBR20 Linear Rail Kit for Automated Machines Equipments and DIY CNC Routers(78.7'')

GUWANJI 2Pcs SBR20-200 with 4Pcs SBR20UU Square Type Block Bearing, Linear Rail Overall Length 7.9 inch(200mm) for CNC Machine and 3D Printer