Mason Jar Fairy Lights, Pint Wide Mouth Jar, Warm White Lights, Set of 4 A set of (4) 16 oz. wide mouth Ball Mason jars with silver lids Includes four 4.5 ft. strands of fairy lights with 12 warm white micro LEDs Each light strand requires 2 xCR2032coin cell batteries (included & replaceable) Light strand is waterproof, battery pack is not Simply tape the battery pack to the underside of the lid to keep it from being seen