Although unused, it has been stored for a period of time. Also, the box has been opened. It can be used repeatedly without causing a fire. A pocket the same size as a hot water bottle is attached to the knee blanket, so after microwaving, you can place it in the pocket of the knee blanket and wrap it around your waist or put your feet on it to warm up. [Yutapon Knee Blanket for the Office] The 65 x 90cm fluffy and rich knee blanket and the wide-sized main body wrap around your stomach, waist, thighs, and feet, gently warming them. ● Simply microwave it to wrap your body in a comfortable warmth. ● Warm the main body containing soft gel and use it by placing it in the pocket of the knee blanket cover. ● Because it is a wide size, it gently warms your stomach, waist, feet, etc. ● As a knee blanket or a blanket, it can wrap around areas where you feel cold. ● The warmth lasts for about 1 hour. (The duration of the warmth varies depending on the outside temperature and how it is used.) ● For desk work in the office. For relaxing at home. While using a computer or studying. ● Can be used repeatedly. ● Comes with a dedicated washable "knee blanket cover". [Uses] For keeping warm while sleeping ◆Contents ・1 two-fold Yutapon main body ・1 fluffy knee blanket cover (color: chocolate brown) 65 x 90cm ◆Ingredients Gelling agent, coloring agent Knee blanket cover material: Polyester ◆Manufacturer: Hakugen Earth