Material: Keychain is made of stainless steel, it is lead free and nickel free. Stainless Steel is hypo allergenic, it doesn’t rust, change colour or tarnish. Size: The size of the key is 1.2cm(0.47inch) * 5 cm(1.97inch), which is suitable for wearing keys. TIPS: manual measuring permissible error. Engraved words "Yes, I really do Need All These Board Games". The perfect gift for game board enthusiasts. It will make great father's day gifts, birthday present, friend gift, dad gifts,uncle gift Christmas gift and Even yourself. This keychain will come to you nicely presented in the Zuo Bao jewelry velvet bag,which is strictly protected from any damage during transportation.