Light up your party and light up your guests for a holiday party with our Happy Holidays light-up necklace. Each Happy Holidays round pendant is 1 1/4" in diameter and comes on a 24" cord. All pendants have a multi-functional switch, slow blink, fast blink, or constant on and come with batteries included and installed and white LEDs. Our Happy Holidays light-up pendant is sold by the piece. Please order in increments of 1 piece.