3M DBI-SALA UCL Advanced 5 Pc Hoist System with rated 450 lb capacity is designed for manhole and confined space entryretrieval applications. This 100 lb system includes 12″ – 29″ adjustable offset upper mast, 30″ lightweight lower mast, 3 Pc lightweight base and winch mounting brackets. Davit arm pivots 180 deg for ease of rescue and 5000 lb fall arrest anchor point located at end of upper mast. 37″- 64″ Adjustable lower base with inside leg disassembles and collapses without tools into 3 components for transport and storage. It is constructed from lightweight materials including high-strength aluminum and meets ANSI, OSHA standards.