This is a homemade purple lightning bolt attached to a key chain. The lightning bolt glows purple in the dark The lightning bolt measures 1.75 inches long(not including the chain). The second photo shows the lightning bolt in the dark after exposure to sunlight, Incandescent light, or fluorescent light for at least 30 minutes, the glow in not that bright. The third photo shows the lightning bolt after exposure to UV light for only 30 seconds. Under UV light, the bolt glows blue. I will include 1 mini UV light with each key chain(see 4th photo). The UV light not only allows you to charge the lightning bolt quickly at a moments notice, but the bolt glows much more intense with exposure to UV light. The bolt will glow for several hours after proper charging, and can be charged hundreds of times. The time it takes me to ship an order from purchase will usually be only a couple of days, unless I am backed up with orders, in which case I will alert you.