Rol-Away crate-handling trucks are easily able to handle extremely heavy loads due to simple A-frame design that keeps the center of gravity in a stable position. No part of the weight is ever born by the operator when the crate is loaded and rolling. Key Benefits EQUIPPED WITH 4 SWIVEL CASTERS FOR EASY MOVEMENT ONE SWIVEL LOCK PROVIDED ON EACH END OF THE TRUCK FOR STRAIGHT RUNNING HUGE 4000-POUND LOAD CAPACITY