Complete Sherwood 5600 Maximus Regulator with 3209 Shadow Plus Octopus and Aeris 500 AI Integrated Dive Computer Setup. Purchased about 20+ years ago but only used a few dozen times due to post-9/11 baggage restrictions. Last used about 7 years ago with no problems. Probably needs servicing; new battery just put into Dive Computer. Comes with extra hose, Dive Computer Instruction Booklet, Quick Reference Card and Protective Cover.