相棒 season 21 Blu-ray BOXの買取情報

It looks like you're referring to a Blu-ray box set for "相棒" (Aibo), which is a popular Japanese television series. The number you provided, "4907953268777," seems to be the UPC or product code for the season 21 Blu-ray box set.
If you need more information about the contents, features, or where to purchase it, please let me know!