BibBits is the best and easiest way to put on your race number on your jersey, shirt or jacket. With the 4 magnetic BibBits you attach your number bib quickly, easily and accurately on your shirt. The bib will be kept perfectly in place with the powerful magnets. Each package comes with adhesive dots for extra hold during high-speed activities or use with slippery event bib. The lightweight and round shaped edges ensure that you will experience ultimate comfort when using your set of BibBits. BibBits is the best way to end damage to clothing and jerseys caused by the use of safety pins.