phone charm: 1) Material:Fashion Diamond Phone Charm made ofmetal, aluminum,glass crystal,diamond, etc. 2) Have two faces, On-off switch 3) High quality metal with shining gold,nickel,chrome and many other platings. 4) Various thicknesses and Various attachments available 5) Different processing ways to get perfect effect. 6) Customer's designs & sizes accepted. 7) Your logo can be printed or laser engaved on the back