Discount Ramps TD-3500 Boat Trailer Dolly 3,500 lb GTW or 600 lb Tongue Weight with 1-7/8" Hitch Ball Great for cargo, utility, PWC, and small boat trailers Adjustable 1-7/8" hitch ball height from 15-3/8" to 24-3/8" Rated Maximum: 3,500 lb Gross Trailer Weight OR 600 lb Tongue Weight Some assembly is required Steel construction with a durable hammered-paint finish