Roller Wheel Bracket Assembly Series 80/20 Carriage Height 21 mm Carriage Width 40 mm Carriage Length 123.3 mm Carriage Material Aluminum Roller Material Self-Lubricating Black Nylon Agency Compliance - Carriage Finish Clear Anodized Carriage Mounting Hole Size M8 Carriage Type Roller Dimension B 83.3 in Dimension B1 - Dimension B2 - Dimension F 24 in Dimension F1 - Dimension F2 - Dimension F3 - Dimension G 38.3 in Dimension G1 - Dimension G2 - Dimension J 10.2 in