Abstract: A display system for retail stores includes a display device near a displayed product to display information regarding the product on a display screen. A server device communicates with the display device and includes a processor that acquires, from a customer's mobile terminal device, a terminal identification and product identification information regarding products registered for purchase using the mobile terminal device. The processor selects a display pattern based on the acquired product identification information, and then output a pattern identification of the selected display pattern type to the mobile terminal device. The display device has detection unit to detect the pattern identification output by the mobile terminal device and a display control unit to display the information regarding the displayed product on the display screen in a display pattern matching the display pattern type indicated by the pattern identification output from the mobile terminal device when the customer approaches.

Abstract: Provided is a disk hoisting tool which can prevent deformation or fracture of corner portions of a fitting groove, falling of a disk, and damage to a surface forming the fitting groove, and can safely reverse the disk. The disk hoisting tool which is mounted so as to hoist a disk where a plurality of fitting grooves penetrating in a plate thickness direction are circumferentially formed in a peripheral portion, the disk hoisting tool including a hoisting body (11) that includes: an eye plate (21) having a through hole penetrating in a plate thickness direction; and a fitting projection (22) formed so as to be fitted with the fitting groove.

Abstract: Provided is a disk hoisting tool which can prevent deformation or fracture of corner portions of a fitting groove, falling of a disk, and damage to a surface forming the fitting groove, and can safely reverse the disk. The disk hoisting tool which is mounted so as to hoist a disk where a plurality of fitting grooves penetrating in a plate thickness direction are circumferentially formed in a peripheral portion, the disk hoisting tool including a hoisting body (11) that includes: an eye plate (21) having a through hole penetrating in a plate thickness direction; and a fitting projection (22) formed so as to be fitted with the fitting groove.