Class B kits offer a broader range and quality of supplies to deal with injuries in more complex or high-risk environments. For example, injuries requiring burn dressings, splints or tourniquets. Features: The conveniently bagged "All-in-One" refill pouches replace the entire contents of the First Aid kit in one shot.The pouches are clear and segmented, making the contents easy to identify and instantly resets a used first aid kit to 100% compliance Specs: ANSI Z308.1-2021- Class B- 50 Person Refill Kit- 274 Pieces- Plastic Bag-4/Case Case Quantity: 4 Case Length: 5.1 Case Width: 5.21 Case Height: 5.44