Switch between 3 Modes - "On", "Flashing", and "Off" - Fits multiple tire sizes, from 12" toddler tires to 29" adult tires - Increase visibility at night by 350 degrees for safety - Simple installation with no tools required! Plus, we have an easy-to-follow installation video - Don't settle for inferior quality, Activ Lites are high-quality, durable, and waterproof.