72-LT618 The TG LED Bike Spoke Light Bike spoke LED design maker is as simple to mount on a bicycle as it is cool to use! As the bike is ridden, 40 different light patterns and 5 word phrases are displayed on the spinning tire. Riding a bike at night is safer because the bright LED lights are visible from a distance. And what a neat way to stand out from the crowd with these unique light displays! Features: -Message light. -Waterproof orange ABS plastic construction. -14 Blue LED lights. -Installs on the either side of front or back wheel. -Fits on bikes with a wheel diameter of 20" or greater. -Display sequence: Message, Patterns, Time of Riding, Number of Rounds, Patterns. -Shuts off automatically to save power approximately three minutes after wheel has stopped. -Change letter orientation by holding the on button for 5 seconds until you see all the LEDs turn blue. -5 Words patterns: "HELLO", "I LOVE YOU", "PEACE", "GOGO" and "BIKE". -Requires 3 AAA batteries (not included). -30 Days warranty. Specifications: -Sensor dimensions: 2" H x 1" W x 1" D. -Light dimensions: 5.25" H x 2" W x 1" D.