Thank you for viewing! ^^ This is a Teddy Warmer, similar to a hot water bottle, that uses a silica gel bag inside that you heat up! It has never been used. Instead of filling it with hot water, you heat the silica gel bag inside for 30 seconds at 500W. The tail on the back has a zipper and can be removed. This fluffy bear-shaped hot water bottle provides comfortable warmth with a 500W heating effect. - Model Name: Teddy Warmer - Design: Bear-shaped - Color: Gray - Features: Fluffy material If you have any questions, please feel free to comment. Thank you.