Door Hanger Kit Sliding Door Round Rail Max Weight (Lb.) 600 lb Steel - Zinc Finish Length (In.) 6 1/8 in Height (In.) 10 1/4 in Width (In.) 2 in Depth (In.) - Max Wheel Dia (In.) - Roller Width/Dia (In.) No Roller - Mounting Mounting Hole Size (In.) - Rubber Bearings Number of Wheels 2 Steel Hardware Included Requires - For Use With Doors Weighing Up To 600 Pounds Package Quantity 2