The product is a signed Chelsea home shirt by football player John Obi Mikel, accompanied by a Certificate of Authenticity (COA). This item falls under the category of football memorabilia, specifically as an autographed shirt from a Premiership player. It is a genuine original piece, not a reproduction, making it a valuable and collectible item for fans of Chelsea football club or football enthusiasts in general. The item is not personalised, making it suitable for fans looking to add a piece of sports memorabilia to their collection.