It is safe to ring handbells outdoors in warmer temperatures. The tuning of the handbell castings will go lower in higher temperatures but will go back in tune when in a 70° F environment. Do not expose the handbells to direct sunlight as the heat will soften the handles and they may lose their shape. If condensation appears on the castings when the handbells are brought into air conditioning, dry them with a soft cloth before returning them to their cases. We suggest wiping the castings with a polishing cloth after each use.