The product is a Chilton's GM General Motors full-size trucks 1988-98 repair manual. It is a paper manual published by Chilton specifically for General Motors trucks manufactured between 1988 and 1998. The manual provides detailed instructions and diagrams for servicing and repairing these specific vehicles over the subscribed length of 1 year. It is an essential resource for owners of these GM trucks looking to maintain or repair their vehicles effectively.