This is our 4-Pack of 2.5Lb jugs of our 100% Food Grade Diatomaceous Earth.  Save big by buying in bulk from us!  It contains approximately 800 tablespoons, and is a great size for a big family, pets, and preppers.  Since Diatomaceous Earth has no specific shelf life, ordering in this quantity can offer you a greater savings.  Please call us at 800-228-5836 for more details on special pricing.