4-Wheel Trolley, Carbon Steel Wheels, Stainless Steel Ball Bearings, Finish: Electro-Galvanized, Load Rating: 600 lbs. For use with 1-5/8″ x 1-5/8″ channel
- Three 9/16″ mounting holes
- 3-1/2″ Length
- 3-1/4″ Height
- Wheel bearings should not be lubricated.