Other names LR03, LR3, R3, AAA, N2400, AM4, E92, UM4. Shape cylindrical. Size 44.5mm. Diameter 10.5mm e or approximately 1.75 inches by .41 inch. The Sexy Battery batteries deliver powerful and constant performance that keeps going and going ll our Erotic Gears. Providing long life for your sexy toys. Our Endurance Line generation is exactly what you need. You never stop to have pleasure. Your battery should not either stop. Please dispose of batteries properly when spent. Always store of reach of small children. Choking hazard.