The product is a set of three vintage Koh-I-Noor Rapidomatic mechanical pencils, model numbers 5633 and 5635. These drafting pencils feature a 0.3mm lead diameter and are made of plastic. Known for their quality and durability, the Koh-I-Noor brand ensures precision and reliability for various drafting tasks. Perfect for collectors or enthusiasts of vintage writing instruments, these mechanical pencils offer a unique and nostalgic drafting experience.