1-7/8" Trailer Ball - 1" x 2-1/8" Shank - 3,500 lbs. - ChromeCURT 1-7/8" trailer balls are constructed from high-strength steel to match the towing power of class 1 or class 2 trailer hitch and ball mount and come with fine threads on the shank for improved holding strength. Having a trailer ball that matches the coupler size is essential. At CURT, the trailer balls are engineered to be precisely fitted. When CURT stamps 1-7/8" into the top of each hitch ball, CURT means 1-7/8".This CURT tow ball features a ball capacity of 3,500 lbs. It is able to tow most utility trailers, boat trailers, campers, smaller livestock trailers, and some recreational vehicle haulers. (NOTE: Never exceed the lowest weight capacity of any towing component, i.e., the vehicle, hitch, trailer, etc.) As with any trailer, be sure that the towing equipment is capable of handling the load before hitching up. This trailer ball also features a 1" shank diameter, a 2-1/8" shank length, a 0" rise, and a nickel-chrome finish to protect against corrosion and wear. Like all CURT trailer balls, the 1-7/8" balls are tested for safety and meet all U.S. VESC specifications.Features:Fits 1-7/8" couplers and accepts up to 3,500 lbs. GTWConstructed from high-strength, hot-forged steelProtected by a durable chrome-plated finishZinc-plated hex nut and helical lock washer for secure mountingFeatures fine threads for superior holding strengthTested for safety to meet U.S. VESC V-5 specificationsSpecifications:Ball Capacity: 3,500 lbs.Ball Diameter: 1-7/8 in.Color: SilverFinish: chrome-platedHub Warehouse: D25Material: Forge steelPart Type: 1-7/8 in. Trailer ballShank Diameter: 1 in.Shank Length: 2-1/8 in.Shank Rise: 0 in.Torque: 250 ft. lb.Warranty: Limited lifetime warranty (one-year finish, one-year parts)*The mounting platform must be at least 3/8 in. thick, and the hole size must not be more than 1/16 in. larger in diameter than the threaded shank