US Coast Guard approved first aid kit certified to meet the requirements you need for life boat usage. Contents are sealed waterproof in a high impact plastic case. Weatherproof Plastic, 25 Person Kit. Sold as a Kit of 135 pieces. 135-piece lifeboat first aid kit contains supplies for treating cuts, abrasions, burns, headaches, eye wounds, and fractures for up to 25 people. The kit comes in a weatherproof plastic case with a carrying handle and mounting holes that measures 10 x 10 x 3 inches (H x W x D). (H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.) This first aid kit has been approved for use in lifeboats by the United States Coast Guard. Refill supplies are sold separately.