Trademark Global - TGT 14 LED Bike Spoke Message Light - Set of - Set of 2. Fits on bikes with a wheel diameter of 20 in. or greater. Waterproof. Orange ABS plastic construction. ON button. Installs on the either side of front or back wheel. Display sequence: message, patterns, time of riding, number of rounds and patterns. Patterns change every three seconds. Forty design patterns. Five words patterns: HELLO, I LOVE YOU, PEACE, GOGO and BIKE. Light enters sleep mode one minute after wheel stops. LED lights keep blinking for tow minutes after. Shuts off automatically to save power approximately three minutes after wheel has stopped. Sensor unit mounts on bike forks. Made from plastic and wood. No assembly required. Sensor: 2 in. L x 1 in. W x 1 in. H. Light: 5.25 in. L x 1 in. W x 2 in. H (1 lbs.)