50mm towball for spring loaded mechanical coupling for Boat trailers, with total load Carrying Capacity Varying from 2 Ton to 3Ton, The 4 Hole Couplings are Machined and Completely Zinc Plated Steel Grade Iron We also Manufacture several Trailer parts and Trailer Suspension parts viz; Boat Trailer Parts, Heavy Trailer Parts, Light Trailer parts, Agri Trailer parts and their suspension Kits We can also manufacture as per your requirements, Quality and drawings at competitive prices as dedicated vendor from india Terms of payments can be discussed