Muc off tyre cassette brushthe muc off tyre and cassette brush is equipped with stiff and durable nylon bristles that will make short work of road grime or dirt from the trail it is ideal for working in cleaning products such as muc offs nano tech bike cleaner and will bring your components up like new the handle features moulded silicone inserts that help to give you a comfortable and steady grip features durable nylon bristles reach hard to shift grime silicone inserts provide a comfort