Key chains of FRANK. You can add a personal touch by hot stamping your initials. This functional piece can be used as a bag charm or key holder. The Epi tab bag charm and key holder is a sleek accessory in iconic Epi leather and striking hardware. You can add a personal touch by hot stamping your initials, that will be a stamp of distinction and elegance. This functional piece can be used as a bag charm or key holder..