The Christmas cracker is a paper tube that is usually filled with small gifts and surprises. It is traditionally pulled by two people, and when the cracker is pulled, it makes a small popping sound and explodes open to reveal the hidden gifts inside. The gifts can include small toys, trinkets, candies, or even fortunes. Some crackers also contain a paper hat that people can wear after the cracker is pulled. The Christmas cracker is often used as a decorative item on the dinner table, and is considered to be a staple of Christmas traditions.