CE Smith Trailer Heavy Duty Trailer Dolly- Replacement Parts and Accessories for your Ski Boat, Fishing Boat or Sailboat Trailer Supports up to 700 lbs of trailer tongue weight 1-7/8" hitch ball Handle is 48" long from the hand grips to the axle. Hand grips are 11" wide 4.10 x 3.50 x 6 pneumatic tires (12" tall) Dolly stands a full 28-1/2" wide overall for stable tracking