Cute way to tell someone that they have the key to your heart. Goes well on a gift or a card. Additional embellishments would look nice to jazz the whole entire look of it up. 1 set includes 1 lock and 1 key. There are 4 sets that are included in a pack, 8 total pieces.Colors can be mixed and matched (in terms of locks and keys) to enhance the look. Die cuts can also be cut in any of the listed colors. Can be used on invitations as well.