PROBLEM TO BE SOLVED : conventional hotel [...] is hung on the door knob and of similar form and used as an advertising real estate advertising ?automobile sales advertising ?reform work such as an advertisement, and the advertisement can be used for various advertising. SOLUTION : wooden ??cardboard made of plastic such as polyvinyl chloride ??bakelite formed by various kinds of material, consisting of yellow represented on the entire surface of the main body of the card plate 1, such as a door knob ?stretched on the gate and an opening 2, remodeling work such as an advertisement ?real estate advertising advertizement ?automobile sales advertising display of the contents of the address of the company name ????office business office telephone number such as described in e-mail advertisement display column 4 and, like the name of black and contact telephone number is entered in a visitor column 5 and is provided, on the rear side of the bin plate main body 1 or the individual consumer visitor comment for filling in a comment column 6 is provided including a visiting date.