This Low Profile Manual Trolley has been designed to quickly install on virtually any S, H, W and M type I-beam. The width of the trolley is adjusted by rotating the center rod with lifting eye clockwise or counterclockwise. Once hoist is attached, center rod cannot be rotated which prevents trolley width from accidentally changing. This geared trolley is ideal for use when precise positioning of the trolley is required. The trolley includes four rollers with sealed bearings for long life. A lifting eye is located at the bottom of the trolley for attaching a hoist . Steel construction and painted finish. Features Special design works with S, H, W and M type I-beams Turning center screw with 'eye' easily adjusts trolley widthSpecifications Capacity: 2000 lbs Weight: 29 lbs - SKU: VSTL15020