The Bookmark Needs Charge Any Light Can Give It Energy. Then It Will Glow For A Long Time In The Dark!!! Unique Night Glow 3D Dragon And Feather Bookmark Creative And Special Element Combination Builds Up This Wonderful And Practical Bookmark. Silver Color Gives The Bookmark A Proper Vintage And Luxurious Touch. With Additional Special Night Glow Material The Dragon And Feather Part Will Glow Slightly In A Dark Place Making The Bookmark Funnier.