To activate, simply tap on the head of your LED Spike Ball Wand and the red and blue LED lights to life. The LED lights flash in an alternating red blue strobing fashion for about 10 seconds and then shut off. NOTE: LED Spike Ball Wands come in assorted packs of 12. Therefore when you order 1, you will receive 12 LED Spike Ball Wands. When you order 2, you will receive 24 LED Spike Ball Wands and so on. 3 different colored spike balls are included in the assortment. Comes ready to use with batteries installed.