The Tuff Built Products Pro-Series Counterweight System or Cart converts the Pro-3 Hitch Mount System to a portable counterweighted support base for a davit system. Standard davits and accessories up to an offset of 30. may be used. Weight Rack design allows the use of readily available barbell type weight plates for counterweight ballast (see Counterweight Chart Page 3 of 3 for weight requirements). Exclusive TUFF-KLIK connectors (Patent Pending) eliminate adjustment pins that can be easily damaged or lost and allow for easy incremental set up and adjustment of the structure.