Fairy Berries, Tiny Round LED Lights, Water Resistant, 10 Pack, TEAL Includes: Pack of (10) Ten 3/4" ball-shaped lights with batteries pre-installed and 2 replaceable CR1220 batteries installed in each light. Fairy berries provide continuous light, progressively increasing and fading, for a slow twinkle effect. Recessed hanging hole for hanging lights with wire or line. Water-resistant construction with an O-ring gasket to enable lights to float. For indoor and outdoor decorative lighting. Choose your color above.