Christmas wrappers are usually made of paper or foil and are used to wrap gifts for the holiday season. The term 'ELF' is a three-letter acronym which stands for 'Easy-to-Lift Foil'. This type of wrapping paper is designed to be lightweight and easy to lift, making it ideal for wrapping presents. It is also often decorated with festive designs, such as snowflakes, holly, and other Christmas symbols.