The product is a signed paperback book titled "Seize the Moment: Autobiography of Britain's First Astronaut" by Helen Sharman and Christopher Priest. Published by Orion Publishing Co, the book features 192 pages and is written by Christopher Priest. It is a biography of Britain's first astronaut, providing a unique insight into the life and experiences of Helen Sharman. The book is a valuable addition to any collection, especially for those interested in space exploration and inspiring stories of achievement.