3M™ DBI-SALA® Confined Space, Vehicle Counterweighted Base HC 8000103, Green, 1 EA/Case 3M™ DBI-SALA® Confined Space HC (High Capacity) Vehicle Counterweighted Base is constructed of powder coated aluminium  and attaches to the vehicle via 50 mm, 1-7/8", or a  2" hitch ball.  Integrated adjustment features provide flexibility during installation.  When used as part of our complete system, this base meets the requirements of EN795:2012, EN1496:2006, CEN/TS 16415: 2013, and AS/NZS 5532. Combines with 3M™ DBI-SALA® HC Davit Mast to form a confined space rescue and work support system Utilizes vehicle ball hitch as counterweight Lightweight and corrosion resistant aluminium construction Powder coated and zinc plated finishes for corrosion protection 180 degree davit mast rotation