Description: 【Quick and Easy Installation】: Designed for the fast paced environment of events, these Magnetic Race Bib Clips allow for easy attachment and removal 【Precision Bib Positioning】: Engineered to meet the display needs during race, these Race Number Buckles securely hold your race bib in a prominent position on your chest. This ensures that your bib remains flat and centered throughout the run, enhancing visibility and maintaining its position 【Strong Hold】: These Running Bib Holders provide strong attraction that withstands vigorous movements during runs. The grip avoids accidental detachment of the bib, allowing you to focus entirely on your performance without worrying about losing or misplacing your race number 【Reusable Design】: These magnetic holders offer significant reusability . They can be used multiple times across various events, making them an economical choice for frequent racers 【Versatile Application】: These Race Number Holders are ideal for other running competitions, outdoor activities, team sports, or any event requiring attachment of identification tags or signs Specification: Material: ABS Magnet Size Chart: Upper Cover: 1.8cmx0.3cm/0.71inchx0.12inch Lower Cover: 1.6cmx0.3cm/0.63inchx0.12inch Package Includes: 4 Pair Magnetic Race Bib Clips Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.