Fangrui Product Details Comfortable Material: The Handlebars Are Made Of Durable Tpr Rubber And Aluminum Clip Ring, Which Is Not Easy To Slip No Matter The Infiltration Of Rain Or Sweat, Which Greatly Increases The Safety Of Riding. Strong And Durable Material Prevents Deformation Of Mountain Bike Handlebars. Ergonomic Grips: The Ergonomic Non-slip Bike Grips Increase The Contact Area With Your Hands And Distribute Pressure Over A Larger Area. It Reduces Hand, Wrist And Elbow Fatigue During Long Journeys. And It Can Reduce Vibration While Riding, Making You Feel Comfortable And Safe While Riding. Universal Handlebar: Suitable For All Standard Bicycle Grips/handlebars, Diameter 22.2mm, Length: 130mm, Bicycle Handlebars For Bicycles, Racing Bikes, Folding Bikes, Bmx, Scooters. Easy To Install: The Bike Grips Come With A Hex Wrench. Once The Handlebars Are Inserted Into The Grips And Adjusted To The Correct Angle, The Inner Aluminum Fasteners Can Be Tightened With A Hex Wrench, And The Outer Dust Boots Can Be Inserted Directly In.