This is a book with a quiz function that lets you enjoy the sounds of all 50 types of Plarail trains. The main unit works fine, but the book has been well-used and has been repaired with tape. - Product Name: Plarail Hakase (Dr. Plarail) - Number of Trains Included: 50 total - Price: Regular price 2,280 yen - Features: With sound function - Quiz Function: Includes quizzes and tests If you don't mind the condition, please consider purchasing! ☆