magnetic race bib holder is a game-changer for marathon runners. It provides a secure and damage-free way to attach your race number to your running clothes. To use, simply position the magnetic clips on the corners of your bib and attach them to your shirt. The robust magnets will keep your bib firmly in place, ensuring it stays visible throughout the race. This product is ideal for marathon runners looking for a and easy-to-use bib attachment solution. Features -Color:Black -Material:Plastic -Size:1.80X1.80X0.20cm/0.71X0.71X0.08in -Effortless attachment: the magnetic buckle system allows for quick and easy attachment of race bibs, up your preparation process -Firm grip: the magnetic hold ensures that your race bib remains securely attached, minimizing the risk of it falling off -Comfortable fit: made with lightweight materials, it offers a comfortable and unobtrusive fit, enhancing your overall running experience -Multifunctional: ideal for marathons, the race number fastener is also ideal for other outdoor activities such as cycling and general running -Robust construction: made with robust plastic materials, this running bib clip is designed to last and can be reused multiple times Package list: 4 x magnetic bib holders