I ordered the product, because our five year old daughter, no bike with standard lighting drives (18 inches). Despite safety vest it is me on the bike not just visible enough in morning darkness ... These indicators will light beautifully bright, although they are not suited for illuminating the way. But -Straßenlaterne was gratitude that's not necessary! These lights can be flexibly mounted anywhere where it makes sense (helmet, bicycle handlebars or bike basket), and when the little girl have a bigger wheel with its own lighting, the lamp can still jogging, drive-line or at the City-Roller fulfill meaningful tasks. Attached are the lights as required by fixed Appended rubber band or with one of the two supplied (different lengths) fastening straps with Velcro. Highly recommended!