The present invention relates to an anti-reflection member and a display. The legs terminate at one end in hooks or brackets that are placed over the rungs of a ladder. The box main body is disposed on the right of the right vertical plate in a state where the boom foot pin is placed opposite the housing space with reference to the opening region in a side view in which the upper slewing body is viewed along an axial direction and the box main body is shaped to open the boom foot pin in the axial direction. The vehicle also includes orientation and steering components as well as sensors for controlling the course of travel of the vehicle within the area and, such as the circular bumper, to prevent it from colliding with obstacles in the area. Rules related to a vulnerability are received in plain English from a web-based front-end application.