Athlights Magnetic Flashing Safety Lights for Running, Walking and Biking After Dark We listened to your feedback and improved Athlights beginning February 2016 with 100% stronger magnetic grip for Use with thicker garments Replace bulky reflective vests with these small, compact lights that go anywhere on your clothing Eye-catching LED light flashes Red and white for maximum visibility Intended for runners, walkers, bikers and anyone who is active after dark Powerful LED lights keep you visible at night from up to 600 feet away