Materials, Sides And Wearable: Fronts Are Pu Leather And Interiors Are Paper. This Book Lamp Has A Total Of 36 Pages. It Is Small And Battery Operated. You Use It Wherever You Want. . Nice Design: Unique Book Design, 360 Degree Rotation, With Built-In Rechargeable Battery Through A Usb Cable To Charge. After Charging, The Lamp Can Work 6 Hours. . The Colors And The Brightness: With Opening And Closing The Book, You Can Freely Choose 5 Colors (Warm White, Purple, Blue, Green And Red). Different Colors Are Suitable For Unequal Surroundings, As A Wall Lamp, Reading Lamp Or Decoration. . Security: Inside Are Tyvek Paper. No Cords Or Wires, Round, No Glass And Plastic, Makes It Safe For You And Your Kids. . Wide Range Of Applications: This Book Light Is Suitable For Opening Ceremony, Birthday, Awards, Business Gifts, Promotions, Anniversary Celebrations, Trade Shows, Festivals, Employee Benefits, Housewarming. .