The Berkey^® Base, made of a durable co-polyester can be used for the Travel Berkey^®, Big Berkey^® and Berkey Light (comes with Berkey Light systems) gravity water purification systems. The base allows these systems to be situated anywhere on a flat surface and eliminates the requirement that the systems be placed on the edge of a table or counter. The Berkey^® Base is currently available in three versions; without lights, with bright white lights and with beautiful cobalt blue lights. The LED lamps make the perfect night-light, emergency light, or camping light. The LED lamps are directional so the base can also be used as a stand-alone emergency flashlight. The height of the Berkey® Base height is 5.125" and the diameter is 8 5/8".