Weitech 0675 Mole and Gopher Repeller Repels burrowing rodents humanely with sound waves Operates up to six months on four D-cell batteries (not included) Covers up to 2,500 square feet of lawn or garden Includes removable "digger tube" for excavating mounds and tunnels Weather-resistant plastic; 9-1/4 inches high with 6-by-4-1/2-inch top