We use Jewelers Brass (alloy C226). It looks very similar to yellow gold when its not tarnished!The strength and corrosion properties are similar to yellow brass – jeweler’s brass is about 8% stronger and costs a bit more.Brass tarnishes but can be cleaned with an ultrasonic cleaner or any commercially available brass cleaner - like Brasso.Most brass wire you will find is soft, but our brass is 1/2 hard temper which combines strength with workability.