VEVOR 3PCS Linear Rail 2-167.6 cm(0.78-66 Inch), Linear Bearings and Rails with 4PCS HSR20 Bearing Block

Type: Linear Actuator Rail Shafts: HSR20, 66.9 in / 1700 mm Gross Weight: 20 lbs / 9.1 kg Package Dimensions: 67.3 x 3.5 x 3.1 in / 171 x 9 x 8 cm