A Pair of Bicycle Wheel Light Shark Shape Spokes LED Bike Multicolor
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mi sono arrivati in 20 giorni. ho presi quelli colorati, si accendono pigiando, si attaccano ai raggi delle ruote con facilità.
arrived lit up because battery is inside. one battery is dead because its been on way too long. otherwise these are a good safety addition for your bike
Item comes with instruction not in English but has pictures. I was worried I was going to break them in my attempt to take apart to put on spokes. The button i accidentally figurred out after opening and touched the battery. It is activated by pushing on one side or the other of the circular part. Difficulty there is it is not a button really and takes some force to push it hard enough to come on. Enough force that my 9 year old could not do it on his own.