This Manual Trolly has a 2,000 pound weight capacity, with 8-1/8" headroom, it fits virtually any S, H, W and M type I-beam.

This Manual Trolly has a 1,000 pound weight capacity, with 6-3/4" headroom, it adjusts to the width of any S, H, W and M type I-beam.

This Manual Trolly has a 4,000 pound weight capacity, with 10" headroom, adjusts to any type I-beam with the manual screw mechanism.

This Quick Install Manual Trolly has a 12,000 pound weight capacity, with 13-7/8" headroom, a lifting eye is located at the bottom of the trolley.

This Manual Trolly has a 8,000 pound weight capacity, with 13-7/8" headroom, with a locking ring to prevent the trolley width from changing.

This Quick Install Manual Trolly has a 10,000 pound weight capacity, with 13-7/8" headroom, includes 4 rollers with sealed bearings.

This Manual Trolly has a 6,000 pound weight capacity, with 10-3/8" headroom, and it includes a locking ring for safety.

This Quick Install Manual Trolly has a 600 pound weight capacity, with 6-3/4" headroom, it is designed to easily adjust.

This Manual Trolly has a 300 weight capacity, fits 3" to 5" beams, it has 6-3/4" headroom, it is dependable, easy and safe to use.