Keychains featuring characters from Slam Dunk. - Character: Slam Dunk - Design: Character holding a basketball - Author: Takehiko Inoue - Publisher: WEEKLY JUMP Thank you for viewing. I believe this item was purchased with stamps equivalent to the price of the product in the Jump magazine at the time. It has been stored in a drawer at home for a long time, so I think there is some age-related deterioration. Please check the photos and consider purchasing if you understand this.