Light up your Christmas party and light up your guests with our Merry Christmas Santa light-up necklace. Each Merry Christmas 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. Our Merry Christmas Santa light-up pendant with a white LED is sold by the piece. Please order in increments of 1 necklace.