Easy to switch between Do Not Disturb, Please Knock, In a Meeting and Out of Office, but the status will remain unchanged unless you change it manually because inside the sign there are small magnets that will keep the status stay in placePerfect for conference room, office room, or any room that needs privacy5 inch diameter, letters very clear in bold, easy to see from a distanceStrong double sided adhesive included. Easy to install and no residue left when removedHelps inform the exact status of your office; package includes only 1 sign and a double sided adhesive pad Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-GONGQ trading 3