Name:Solar keychains Material:No battery required,Solar powered lcd Flashing LCD solar powered Key Chain or Cell Phone Straps available Waterproof Flash all the time in rooms or outdoor lights Suitable for promotional purposes and gifts The solar keychain is a especial item in the keychains,it's more popular and can use for promotion gifts,we also can print the logo as your requested,welcome customers to make the orders! Our company main produce many kinds of key chains,also can produce the design as your requested!