To keep your new casters rolling smoothly for as long as possible, be sure to: - Wipe all the casters with the damp cloth to make them clean from any dirt or foreign material. - Do not doom the casters inside damp areas or walk them through harsh chlorine-like or acids. - Now and then, depending on the condition, slightly apply the lube to the caster swivels. - Change the casters if they get worn out or damaged because of constant pressure they receive as the vehicle moves.