Material: zinc alloy. Concise and elegant design, polished and good quality Features: corrosion resistance, no deformation, no fading. Can be used to make key chains, bag charms, your own keychain, phone charms, bag charms, purse, etc. Not only as graduation gift but also as Christmas, Birthday, Wedding, Thanksgiving, Party, gift. Conversion: 1mm 0.1cm 0.039InchWe Promise the Premium Quality and the Best Service, If You're Not Completely Satisfied with Your Purchase Simply Let us Know and You'll be Offered a FULL Refund or Replacement, No Questions Asked. Enjoy this Absolutely RISK FREE Purchase. Awesome Keychain Jewellery:If you are looking for a nice gift for your friends,coworkers,family members and so on,just take this fashion designed keychain into consideration,beautiful and meaningful.It is not a small item but a big surprise!. Solid construction: good corrosion resistance and won't rust, quick release, hook to your jeans, belt, and anything with a loop, never need to worry about keys falling off. WIDELY USED - Can be used to make key chains, bag charms, your own keychain, phone charms, bag charms, purse, etc. Metals Type:Zinc Alloy.