The classroom lockdown kit from Guardian survival gear is designed to get a class of up to 30 through a lockdown situation as comfortably as possible. This lockdown kit is packed in a 5 gallon bucket with a toilet seat lid. The water in this kit should sustain a class for up to 48 hours. They have a 5 year shelf life. There are no food items in this kit. This classroom survival kit contains the following: 37 piece emergency first aid kit . This classroom lockdown kit was designed using advice from exerts in the emergency preparedness industry. It follows guidelines given by government agencies and non-profit preparedness organizations.