This toothbrush sanitizer travel kills bacteria to prevent infectious diseases, gum disease, cavities & life threatening diseases! Eliminates up to 99.9% of the germs and bacteria on your toothbrush. Ultraviolet light bulbs are highly efficient and there is no need for replacement. UV bulbs lasts the life of the toothbrush case. Travel toothbrush sanitizer fits all toothbrushes and most electric heads and is super portable for use at home, college dorms, travels, in the office desk drawer and any other place where you may want to store your toothbrush The toothbrush uv sanitizer automatically turns on when a toothbrush is inserted, and shuts off automatically after five minutes Operated by 2 x 1.5V AA size batteries (battery not supplied). Master Carton Dims: 25LBSx23"x12.5"x10"