Review on Non Marking Rubbermaid Cart Casters - Shop at BuyCasters for Best Options by Jathan Louis

The castors do not protrude beyond the edges of the installation niche. My 4520 trolley is over 15 years old but the replacement screw location is fine. However, the rollers do not clean the ends of the studs. My point is that even if the bogie design has changed, the bolt pattern has remained the same and the casters will not remove the bolts on any bogie that matches the bolt pattern! Unfortunately I wasn't able to attempt to install a replacement before the return deadline.