360° visibility pack of 12 units length: 8 cm adapt to all standard spokes from 1.8 to 2 mm (bike, cargo bike, wheelchair, etc.) How does it work? —— The glass microbeads contained in your reflectors, also called reflectors, reflect in the dark under a light source so they make you visible at 360°. In other words, whether the car is coming from left or right, whether you are maneuvering or going straight ahead, your reflectors will shine under the light of the headlights. * Retroreflective and non-phosphorescent —— In the dark, phosphorescent material rejects the light stored during the day. When there are no more, there are no more. A retroreflective material reflects light into the dark thanks to its glass microbeads. There is never more since the retroreflective does not store any energy, it