How to glow in the dark:
When you are at night, put the product in under the light for 10 seconds, then closed the light you will see the product glow in the dark.
Planets in the solar system: According to the distance from the sun, they are Mercury (☿) , Venus （ ♀） , earth (⊕), Mars（ ♂） , Jupiter (♃), Saturn (♄), Uranus (♅), Neptune (♆ or ⛢).
Product description :
Name ： luminous keychain
Material: alloy + glass
Fluorescent Material: Environmentally friendly, no radiation
Color: silver
Chain Type: Link Chain
Chain Length: 3.15"
Glass Ball Diameter: 0.72"
Package Including: 1 Piece keychain