DEERU aims to provide you , out dear customers the best experience during exercise. <p>Our quick releases help you easily install/uninstall the wheels so you can carry your bike anywhere with ease. <p> <b>High Quality and Brand New</b> <p> <b> Specification: </b> <p> Material: Steel and aluminum alloy <br> Axle diameter: about 4.5 mm. <br> Front Skewer Size: 145 mm. <br> Front Skewer Weight: 46 grams. <br>Rear Skewer Size: 180 mm. <br>Rear Skewer Weight: 51 grams. <br> A Pair Weight: 97 grams <br> Color: Black/Red/Blue/Gold <p><br> Compatible to road bike and mountain bike. <p> <b> Package Include: </b> <br> One Front Skewer + One Rear Skewer