A stroller comprises a handle having a shape resembling the inverted letter U, armrests pivotally joined to the handle, front legs pivotally joined to the armrests, respectively, rear legs pivotally joined to the armrests, respectively, front wheels held on lower end parts of the front legs, respectively, and rear wheels held on lower end parts of the rear legs, respectively. The front legs are set so as to extend obliquely away from each other toward the front wheels. The rear legs are set so as to extend obliquely away from each other toward the rear wheels.