[Product Content] You Will Receive 3 Triathlon Number Belts.Each Number Belt Has A Size Of 84*2.5Cm And A Color Of Black. It Is Suitable For Use In Triathlons, Running And Cycling. [Product Material] This Product Is Made Of Polyester Silk To Ensure Its Lightness And Durability.Polyester Silk Material Has Good Strength And Flexibility, Is Not Easy To Damage, And At The Same Time Provides A Comfortable Wearing Experience, Which Is Very Suitable For Long-Term Use. [Adjustable Design] This Product Adopts An Adjustable Design, And The Length Of The Belt Can Be Freely Adjusted According To Personal Needs To Ensure That The Number Belt Is Stable To Wear And Not Easy To Slide.Whether It Is Running, Cycling Or Other Outdoor Activities, The Number Belt Can Be Kept Fixed And Stable. [Lightweight And Portable] This Product Is Designed To Be Lightweight, Comfortable To Wear, And Will Not Add Additional Burden.It Can Be Easily Folded And Stored After Use, Making It Easy To Carry.It Is Very Suitable For Sports Enthusiasts And Contestants, Allowing You To Focus On Performance In The Competition. [Widely Used] This Product Is Not Only Suitable For Triathlon Competitions, But Also Very Suitable For Running, Cycling Competitions And Other Outdoor Sports.Whether It Is A Professional Player Or An Amateur, You Can Benefit From It And Make Your Competition Experience Smoother.