The Adventure Medical Comprehensive Aquatic H2Oproof Hard Case Medical Kit is Great for outdoor guides, or as a group kit for multi-day adventures. All the components of this kit are organized and Safe guarded in clear, resealable bags with header cards to easily identify the contents and keep track of what is being used. All stored in an impact-resistant, H2Oproof Pelican case, this kit exceeds recommended first aid requirements of the National Park Service for river trips on the Colorado River thru the Grand Canyon.