I love that these come in a 4 pack, my plan was to put one on each wheel for my bike and the bike I keep here for grandkids, but they are so bright that one per bike is really sufficient. And I also found that the way the loop is set up, putting it on the wheel wasn’t a smart move on my part. You really want to attach this to a bar under your seat, a back reflector, or something that has more girth to it and doesn’t move around. They’re a lot bigger than I thought, which is great. Really heavy duty, but extremely lightweight. The silicone strap is flexible and sturdy. The light changes from solid to flashing with just a button push. The red ones have a red light, white ones have a white light. And like I said, very very bright.
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