The Marine 400 is intended for coastal cruising on vessels carrying up to six people. Upgrades from the Marine 300 include: CPR Face Shield, triangular bandage, sterile eye wash, as well as larger quantities of medications and wound care items. 1-6 people/2 hrs. of medical care. Weight: 3 lbs. 1 oz. Dimensions: 11" x 8" x 6".