Celebrating one the world's oldest musical traditions, the Lun 36 in. Wind Chime is a relaxing, tranquil piece for any space. It plays the pentatonic (five-note) scale of ancient China, introduced first by Ling Lun, a court musician under Emperor Huang-Ti. Though every part of this product is weather-protected, we recommend a few simple maintenance tips to keep it looking its best for years to come. Simply apply a thin layer of Danish or lemon oil to hardwood parts periodically. Regular application of oil will slow down the natural aging process of wood. And while the anodized aluminum will not rust when exposed to the elements, mild soap and water will help prevent pitting.