We designed a case to hold sticky notes (75 mm × 75 mm) that are convenient to have at hand at all times. The felt, fusen case (red) is characterized by a comfortable volume created by fastening a single piece of felt with a snap button and a soft touch that fits in the hand. Sticky notes can be easily put in and taken out, and washable felt is used to keep it clean, so that it can be used comfortably for a long time.