Plain trolleys lugs tread wheels will fit either tapered or flat beam flange within range of adjustment, wheels include permanently lubricated, shielded ball bearings for long life. Manual beam trolleys accepts most hook mounted hoists. Regarding plain trolleys price list, manual beam trolleys applications, hoist trolleys details, please kindly feel free contact with us. Professionally service hope will get your satisfaction. Shan Dong Finer Lifting Tools co.,LTD