My pendants are made with a very high quality non-tarnishing wire.  With all of the intricate twists and turns if you had to polish the wire you would be calling me names and neither of us want that!   I use glass beads and/or Swarovski crystals with my Seso style. The hole on the bail is large enough that you can wear the pendants on a chain, rope chain, cord or even a neck wire.