Features: Ensures your race number stays secures in place with our Marathons Bib Clips, designs to withstanding vigorous movements during runs, ensuring your bib remain visible and intact throughout the event. Crafted from lightweight ABS, these bib clips is easy to use with a simple press and release mechanism or magnetic attachments, minimizing any additional weight for a great running experience. Ideal for runners of all level, from casual joggers to professional marathoners, who need reliable bib fastening solution that wont hinders their performances. Perfect for various event such as marathons, triathlons, and fun runs, these bib clips provide a easy solution for both pre race preparations and post race cleans up. With quality construction, these bib holders is reusable across multiple races and training, offering a cost effective and environmentally friendly option for athletes. Specifications: Component: ABS Color: Black and White Size:Approx. 17.5x17.5x7mm/0.69x0.69x0.28in Optional Quantity: 4pcs Black and 4pcs White; 5pcs Black and 5pcs White Package Includes: 8pcs or 10pcs Race Bib Clips (optional) note: Please allow 1-3cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!