Tight shiny lycra and wobbly ding-a-lings these are a few of his favourite things. Bike Balls naturally bob around while you ride, boosting your visibility and safety in a unique way. Features a mounting loop that easily attaches to the back of your bike seat, backpack, tent, stroller, or almost any item. Built for rough riding with water and splash-resistant construction. Gently squeeze Bike Balls to turn the light on and switch between solid and flashing modes. Squeeze again to turn off. 1-year hassle-free warranty. As cyclists who regularly ride in the city, we are vulnerable to distracted and neglectful drivers. We wanted to do something to change that and have fun while doing so. Bike Balls are more visible and noticeable than standard bike lights, helping you feel safer and more confident while riding through city streets. Add a touch of humor to your daily commute and bring a smile to even the most disgruntled driver with your illuminated rear accessory. High-grade silicone body with integrated strap and on/off switch. Single red LED with three light modes: solid, slow flashing, and fast flashing. 360-degree glow. Includes batteries (2xCR2032). RoHS and CE approved.