Bring a fully loaded cooler or those extra items with you that just don't seem to fit in your trunk Simply install the mounting plate beneath your trailer hitch ball and this rack quickly attaches or detaches in seconds Requires a flat/unrestricted area 5" wide x 2-1/2" long Must have a ball stud that is able to accept a 1/4" spacer Rack measures 18" wide × 12" long × 1-1/2" D and weighs 6-1/2 lbs Suggested weight limit for rack is 35 lbs for appropriate handling and cornering