1. Avoid wearing accessories of dark color or easily fade or put together with ink materials such as magazines, or otherwise it can be contaminated and hard to clean; Also avoid direct sunshine and close to high power light/lamp which can result in aging of material.
2. In the case that the item get dirty, clean it with detergent or shower gel and rinse it in water; after the item dried apply some talcum power evenly on the skin surface in order to care the item and generate a good touch feeling.
3. There will be little error for hand measurement.