Gift the birthday celebrant these LED Happy Birthday Eyeglasses. These multi-colored LED eyeglasses are awesome birthday party favors too! It features 6 candles with bright LEDs with 3 different modes: fast flashing, slow flashing, and constant on with the push of a button. The on/off button is also used to change the mode. One size fits most. 3 x AG13 batteries are included & installed. Sold by the individual pair of glasses. Please order in increments of 1 pair of glasses. WARNING: These glasses by nature restrict the field of vision and should NOT be used while driving or when unobstructed vision is required.