A stable installation bracket with strong structure and a specially treated surfaces, possessing certain wear resistance The set provides two wrenches for users to easily install and remove accessories. The design of the wrenches conforms to ergonomics, making it easy to grip and operate, ensuring a secure installation of the accessories This set includes a variety of practical accessories, and the silicone slip prood pad ensures a stable installation of the accessories on mountain bike, from loosening due to vibrations,provides more installation option and can adapt to different types of cameras The black handheld rod features slip proof texture design, enhancing grip stability. The handheld rod may have a telescopic function and its length can be adjusted according to actual needs There multiple connection point and adjustment knobs on bracket, which can flexibly adjust the camera's angles to meet different needs during mountain bike riding