• Quick installing trolley is dependable, easy and safe to use.
• Designed to adjust to the width of the I-Beam.

Designed to be used on any type I - Beam S, H, W, M. Width is easily adjusted with manual screw mechanism. Includes locking ring to prevent trolley width from changing accidentally. Cast iron construction features hardened steel wheels with prelube double sealed ball bearings for smooth operation. Meets ANSI/ASME requirements. FOB Shipping Point.