Standard lengths for various products are:
Measuring and ordering information for a correct finished length on the bracelets/watches.
Most of my pieces contain silver, which can tarnish. Tarnishing is a natural process caused by oxidation. Tarnishing does not harm the silver and can be easily removed by rubbing the piece gently with a soft, treated polishing cloth. The polishing cloths can be purchased from your local jewelry store or me.
When you are not wearing your pieces, store them in a cool dry place, in a Zip lock bag, this will help with tarnishing.