These 30ft Fairy Lights are very durable; made with quality materials, which the string can bend and hold to your needs. Comes with batteries and 15 mini clothespins! No need to purchase or find these around the house No outlet? No problem! With pre-installed batteries, you can use these anywhere indoor or outdoor 8 different Lightning modes include: Combination, Wave, Sequential, Slow Glow, Chasing/Flash, Snow Flake, Twinkle, Steady on. Simply press the button cycle through the modes LED bulb life is over 45,000 hours!