Gel Blasters operate using the same principle as airsoft guns, except that they use Gel Balls as projectiles. eHobby Asia does an introduction to these as they are now carrying them... "Gel Blasters over the years and after much development the quality and function of the blasters are starting to approach the quality of many airsoft replicas. Not only are Gel Blasters better for the environment, they are also great for beginners or young children. The best part of this is, Gel Blasters are also legal in many other countries where airsoft is not, such as China and even Australia!"