I N T R O - C U T

The letter "I" is used to make the word "Intro" which is a small piece of information that is intended to introduce the reader to something. In this case, the small piece of information is the keyhole necklace. The keyhole necklace is a necklace that has a heart-shaped keyhole, which is designed to be worn by women. This keyhole necklace is designed to be worn on the left side of the chest, which is near the heart.