【Product Content】 You Will Receive 8 Pairs Of Starting Number Magnets, 4 Pairs Each In Black And White, Suitable For Fixing Competition Number Cloths And Convenient For Athletes To Use During Competitions. 【Product Material】 This Starting Number Magnet Is Made Of Abs And Magnet Materials, Which Is Durable And Has Strong Magnetic Force. It Can Firmly Fix The Competition Number Bib And Prevent It From Falling. 【Convenient Design】 This Product Has A Simple Design And Is Easy To Use. Just Clip The Magnets To Both Sides Of The Number Bib And It Can Be Quickly Fixed, Saving Time And Effort. It Is Suitable For Use In Various Competitions. 【Safe And Reliable】This Starting Number Magnet Will Not Cause Damage To Clothing And Is Safer Than Traditional Pins To Avoid Puncturing The Skin Or Damaging Clothing, Making It Very Suitable For Athletes. 【Multi-Functional Use】 This Product Is Not Only Suitable For Marathons And Other Competitions, But Can Also Be Used For Various Outdoor Activities, Sports Events And Other Occasions That Require Fixed Number Bibs.