This newest addition to our Light My Bottle® line makes it possible to instantly turn your favorite small collectable bottles into beautiful lighted works of art! Simply insert the fairy light string and battery holder into the top of the bottle and press down on the top to turn it on. The fairy light string contains 10 lights with approximately 3 inch spacing. Requires a bottle depth of at least 7 inches and the bottle neck opening must be at least 5/8 inch in diameter. Requires 2 X AAA batteries (sold separately).