"Trolley is dependable, easy and safe to use. Material Type Steel, Includes Sealed ball bearing wheels, Works With Any S, H, W, M type I-beam, Capacity lbs. 6,000, Flange Width in. 3 to 7 1/2. 10.375in. headroom Width is adjusted with manual screw mechanism Locking ring prevents trolley width from changing accidentally Manual screw mechanism may also be tightened to prevent trolley from moving similar to a Beam Clamp Includes four smooth rollers with sealed bearings for long life Lifting eye is located at the bottom of the trolley for attaching a hoist sold separately Painted finish"
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