Product list: 1 pair of front and rear axles. Ball head diameter 4.5 cm, ball head length 3 cmMaterial: Rear Front Axle Fork Sliders are made of aluminum alloy nylon, strong, wear resistant, and can be used for a long timePurpose: Front Rear Axle Sliders can be used to protect the axle and fork from damage, cover the original front axle space, and make the overall visual more coordinatedEasy to install: Crash Protectors are simple in design, easy to install, and has a simple and elegant appearance, which enhances the overall beauty of the motorcycleApplicable: Wheel Fork Axle Sliders Crash Protectors are applicable to specified models, please confirm whether the model is applicable before purchase Specification: Material: Aluminum alloy, nylon ForYAMAHA MT-09 2021-2023,TRACER900 2021-2023,GT 2021-2023 Size Chart: Ball head diameter 4.5cm/1.77inchBall head length 3cm/1.18inch Package Includes: 1 pair Rear Front Axle Fork Sliders