1.This is a bicycle skewer, which serves as a quickrelease skewer for both mountain bikes and road bikes. It can also function as a bicycle replacement part for various bicycle models 2.Material function: The quickrelease skewer is made of a highquality titanium alloy. This material makes the skewer super light and yet strong enough to withstand the stress during cycling to ensure longlasting performance 3.Compatibility: The skewer set is designed to fit both mountain bikes and road bikes, making it a versatile choice for different types of cyclists, whether you are a mountain bike enthusiast or a road bike rider. This product can meet your requirements 4.Color option: These bicycle skewers are available in a bright blue color. In addition to functionality, the blue color also adds an aesthetic touch to your bike