All Balls 19-5035 Black CV Boot Kit and Tool Expandable universal CV boot, slides and expands over reusable cone tool for trail side CV boot replacement Material is expandable yet tough enough to be a permanent fix Two clamping diameters ensure a good fit on most vehicles (cut to size if needed) Boot material stays flexible in extreme cold temperatures Lithium based Molybdenum grease insures good lubrication for long CV join life