VEVOR Electric Hoist Manual Trolley 1100lbs/0.5Ton 2.68″-4.33″ I-Beam Adjustable
By adding or reducing spacers or sleeves, it adjusts from 2.68″-4.33″ (68-110 mm) for a secure fit and smooth electric hoist travel across different beam widths. It makes lifting and transport more flexible and efficient.