The Christmas Bubble String Light Sets by Kurt S Adler are a vintage-style decoration perfect for the holiday season. With a festive multicolor light source, these indoor string lights are 11 feet long and made of durable plastic. Each set includes 7 bubble-shaped lights and is corded for easy operation. The special feature of this product is its Christmas theme, making it an ideal addition to your holiday decor. The lights are powered by AC and are lightweight and versatile option for adding a warm and cozy atmosphere to your home during the holidays.