you're my fav ... pain in the arse - keyring A funny keyring to show your boyfriend, girlfriend, husband, wife or best friend how much you love them. Perfect little token gift for an anniversary, birthday, valentine's day or just because. "you're my fav .... pain in the arse " hand stamped on 30mm x 50mm aluminium blank this keyring is very lightweight but also strong and long lasting. Arrives in an organza gift bag ready to be gifted. This keyring is made using aluminium and is very lightweight. It is strong and will not tarnish.