Drums with bigger heads (drum surfaces) sway back and forth more slowly, resulting in slower vibrations and a lower pitch. If you gave one of your drums a thicker or looser surface, it would bounce slower and generate a deeper sound. A drumhead is like a balloon: The larger the drum, the flatter its pitch. The best way to play drums is with acoustic drums. But not all genres of music are suitable for acoustic drums. For example, pop music uses small drums that can be played only with electronic instruments. One type of electric drum used in popular music is called a kick drum. It usually has a thick wooden shell and two plastic or metal rods called shanks attached to its edge. When the drummer hits this drum hard with his foot, it makes a loud noise because it is hollow inside. Another type of electric drum is called a snare drum. It also has a thick wooden shell but instead of having legs, it has a wire mesh basket attached to its edge with glue or screws. This drum is played with a microphone-like device called a stick. When the drummer strikes the drumstick on top of the drum, it makes a loud noise because of the metal rings attached to its end. Yet another type of electric drum is called a tom-tom.