Specifications: Type: Bike front rear mudguard Material: Synthetic Fiber Plastic Rear Wheel Dimensions: 50cm Front Wheel Dimensions: 27cm Weight: 150g Features: Keep your bicycle dryer and cleaner. Easy to install and remove, and durable to use. Apply to stem diameter less than 34 mm of all kinds of mountain bike, road bike, touring bike, racing bike, etc Fits 24-28" bikes The rear guard is seat post or rear frame spar mounted depending on your frame design and suits bikes with or without rear suspension. Easy to adjust the angle between mudguard and bike tire, no any repair tools required; Easy to install and remove, and durable to use. Package includes: 1x Bike rear fender 1x Front fender Attention: Please check whether your bike has front bar with holes before ordering. This product can not be used on Giant 770. There is no screwdriver for front mudguard. You need to match according to your bike. Thanks for your understanding!