A stylus comprises a shell, a stylus body, and a slide enabling member. The shell has a chamber defined therethrough. The stylus body is slidably accommodated in the chamber of the shell. The slide enabling member is slidably coupling the stylus body to the shell so the stylus body can slide relative to the shell from a retracted position to an extended position. The slide enabling member includes a sliding pin located at one of the stylus body and the shell, and a track defined at another one of the stylus body and the shell and slidably engaging with the sliding pin so the stylus body slides relative to the shell.