CM-Light 4M 40LED Warm White Starry Lights Fairy Lights Copper LED Lights Strings AA Battery Powered Ultra Thin String Wire Contains 40 bright LED bulbs Requires 3* AA Batteries (Not Included),super long working time. Durable and flexible copper wire can easily build any shapes you like Waterproof!Suitable for Indoor and Outdoor in all weather and all seasons. Perfect for decorating your Christmas trees, parties, weddings and other celebrations.