Below is a list of Locking Casters manufacturers from Greensboro, North Carolina. Locking casters are mobility-assistance devices that can be locked and unlocked. Caster locks most often consist of a step-on lever that secures the caster and locks the swivel in position so that the object to which the caster is attached is immobilized. Locking casters are safety features that prevent unwanted rolling or equipment spilling.