Convert-a-ball with the gradual change to the New Zealand standard many people are left with the problem of changing tow balls between 1 7/8” and 50mm in order to tow their trailer, boat or caravan. 
        Introducing Convert-A-Ball, the easy way to switch tow balls in seconds. Manufactured in hard waring Stainless Steel. 
        Includes
 
 
        Shank 1' (25mm) 
        1 7/8' diameter ball 
        50mm diameter ball 
        Stainless Steel slide pin 
        Safety hole drilled for cotter pin 
        For use up to 3500KG 
 
These are NOT suitable to replace the Highrise Towball recommended for the European Stabiliser Couplings​  
These are NOT suitable for bike racks