We can supply you with Towballs 50mm, 3.5T capacity, the spec.: 50mm x 7/8" x 50mm, 50mm x 7/8" x 52mm, 50 mm x 7/8"x 62mm,50mm x 7/8" x 2-1/8",50mm x 3/4" x 45mm and 50mm x 1" x 65mm, finish: chrome-plating or E-coating. the packaging: bulk pack, Clam shell pack or black holder according to customer's requirements.
 
We can guarantee that our Towballs can meet the Australian Standard AS4177.2., and they passed the 

Dynamic test by third party from Australia. the surface finish ( chrome-plating) can be up to the Australian

Standard, It can Pass 100 -1000 hours Neutral Salt Spray test (zero red rust) according to different customer's 

Requests. 

If you require the 50mm/70mm Towballs, please contact us for further information at any time.