1、Plastic Material: Well made by plastic material, will not easy to be worn or rusted, able to be stably keep your bike from dirty mud. 2、Rear Guard Mounting: Rear mudguard is seatpost or rear frame spar mounted depending on your frame design and suits bikes with or without rear suspension. 3、Easy to Adjust: Easy to adjust the angle between mudguard and bike tire, no any tools required, more effortless for users. 4、Application Range: Can be used for all kinds of mountain bikes and road bikes with the diameter of seat post less than 34mm/1.3in. 5、Package Content: The package contains only 2 mudguard, 2 brackets and screws, gaskets, and nuts, other tools like wrenches need to be prepared by yourself.