Remind Mimi every day who loves her the most. Personalize each charm (up to six) with each child or grandchild’s initials! Just leave a note with each letter in the personalization box. If you would like the change “Mimi” to any other nickname, please add that to the personalization box as well! Engraved on a 1/8th inch birch plywood, the impression will last years. The “Mimi” keychain is about 2.5 inches long and each heart is about 1 inch wide.