What is "collarcard"

CollarCard is a credit card-sized collar stay holder, which fits into the user's wallet. The patent-pending CollarCard contains four "pop-out" collars stays. CollarCard is made of the environmentally friendly plastic Teslin. The CollarCard eliminates the common experience of forgetting collar stays – something every man has experienced and no other product on the market solves. While conventional collar stays are easy to misplace, CollarCard fits in a man’s wallet and can be used as needed.