The LED bicycle safety strip wheel frame light has a waterproof design, and helps transform your bike from pretty cool to mega cool. Secure the LED strip lights anywhere on your bike frame or wheels with the included zip ties, and 20 bright LEDs can be turned on to let you cruise the streets safely at night. These strip lights can be used for crafty creations too! To activate your LED bicycle wheel lights, insert three (3) AAA batteries (included) and press the button on the battery pack. Choose from 2 light modes: blink and steady. Waterproof design.