EIN Performance Alloy Quick Release Axle Skewer Set - Front & Rear. Performance Quick Release Axle Skewer Set Alloy Light Weight Aolly QR Skewers - Pair Front & Rear. Change Your Colors ! Axle diameter: about 4.5 mm,Quick Release Front Axle Skewer:about 148 mm (Fit 100mm hub) , Quick Release Rear Axle Skewerabout 188 mm (Fit 135mm hub) EIN Company High quanlity and Best service .We try our best to save time for you .You do not need to compare the product.We had did it for you Before selling . You just buy and use. If you can not receive the goods within 22 Wroking Days, We will resend or refund all your money to you. Believe US, Believe Yourself. Let's enjoy the shopping !