①. Note: 50mm usually refers to the size of the EU and AU style ball head, which is suitable for EU and AU style trailer cover. ②. Specification: - Item Type: Trailer Hitch Ball - Material: Carbon Steel - Ball Joint Size: Approx. 50mm / 1.97 inch - Load Bearing: Approx. 1600kg / 3527.4lbs - Bolt Diameter: 3/4 inch, M19. - Bolt Rod Length: Approx. 50mm / 1.97 inch - Surface Treatment: Chrome Plating - Application: Trailer, RV. ③. Features: - 1. Application: The trailer ball is designed to create a connection between your main vehicle and the auxiliary trailer. It is suitable for towing trailers, etc. - 2. Durable Strength: This trailer hitch ball can hold up to 3500 pounds of weight with reliable towing power and has a sturdy construction for a long service life. - 3. Quality Material: Made of corrosion - resistant stainless steel, the tow ball provides strength and resists rust from rain, dirt, road salts and other corrosion threats for a long time. - 4. Perfect Fit: This trailer hitch ball is 50mm in diameter and can fit many 2 - inch couplings. The ball shank is 3/4 inch in diameter and 50mm long and can be securely attached to the trailer hitch ball mount. - 5. Easy Installation: Lightweight and compact. The hitch ball also has fine threads to better hold the ball joint. ④. Package List: 1 x Trailer Hitch Ball