Brass is hypoallergenic copper and zink alloy widely used in jewellery for durability, accessibility and very warm old gold like tone.
 
With age brass will get darker, but shine can be restored and all tarnishing can be cleaned off at home.
How to clean brass at home
 
Materials and size:
Brass
Glass beads
Total length: approx. 6 cm.
 
NOTE: It's a handmade product so some details may vary slightly from the image. Some colours are very difficult to describe. Please refer to an image.