Abstract
A robot is provided, for example, as an industrial robot having a plurality of arms every mutually adjacent two of which are rotatably connected by an axis. The arms include a leading arm having a cylindrical outer surface. An anti-slip structure is formed on and around the cylindrical outer surface in a circumferential direction thereof. The anti-slip structure serves as a slip-resistance structure, that is, a surface structure for preventing or reducing a user's hand from slipping off therefrom.