The product is a fifth-grade math workbook series titled "B.E.ST. Standards For Math" published by Big Ideas Learning in 2023. The workbook is designed to help students develop their math skills and prepare for exams. The book is written in English and contains various math problems and exercises that align with the BEST Standards For Math. The author of the book is Larson, and the workbook is classified as an instructional resource in the subject area of mathematics.