Material：Made of stainless steel which is recyclable materials, this skin-friendly keychain is lead-free & nickle-free, no harm to health. Size:This pendant is 3*3cm. TIPS: manual measuring permissible error. Engraved funny words “In case of accident my blood type is Dunk❤”. Great gift for Friends or Classmates, It is Also an Ideal Gift for Daughter, Sister and Mom. It is a Wonderful Gift for Friend, Classmates,Family, lover, couple, Birthday, anniversary, Christmas, Graduation This keychain will come to you nicely presented in the Zuo Bao jewelry velvet bag, which is strictly protected from any damage during transportation.