This looks deceivingly like a little credit-card sized mirror you are just wearing around your neck for convenience, but turn it on and 8 bright multi-color (red, blue, green, and orange) LEDs light brilliantly from the edges of the mirror creating a never-ending infinity tunnel effect. 3 different selectable effects: fast flash, slow flash, or continuous on. The card is identical on both sides so the mirror and LEDs can be viewed either way the card is flipped. Comes attached to a lanyard for wearing around your neck. The card itself is about 3 1/4" x 2 1/8". Includes installed long-lasting batteries which are not replaceable.