If displayed outside these pieces will rust/ patina overtime. Some people enjoy this look but if you prefer to keep it in its original form simply spray each piece with WD-40 and let sit until dry. Another option is to spray your piece with a coat of clear spray-on enamel annually. You can also use a clear coat to fix any scratches from regular wear and tear. Should you discover any rust on your piece simply sand it with fine sandpaper or steel wool and then apply the spray clear enamel. Follow these simple steps and your piece will stand the test of time!