The marine 450 first aid kit from adventure medical is ideal for 1-6 people in a coastal vessel who might be 6 hours away from professional care.The kit\'s tru zip technology keeps your first aid supplies, and anything else you add (there\'s room to spare), dustproof and waterproof--even if submerged for 30 minutes in up to 1 meter of water.In addition to wound/burn/blister care items, medications, fracture/sprain supplies, and an emergency blanket, this kit also includes expert advice in marine medicine: a comprehensive guide by eric w.Weiss, md and michael jacobs, md--a detailed resource to help identify and treat over 200 injuries and illnesses specifically related to marine medicine.