Specifically designed to carry the Spirax quality they know and trust with a stylish, durable, polypropylene cover. Bound with a sturdy wiro which provides a clean and neat product. With silver icons on the cover, these books are designed to meet all your writing needs. Perfect for the mobile professional. The Spirax Polypropylene Lecture and Subject Books are side opening with 7 mm ruled lines. The Subject Book includes 4 bonus divider pockets to allow you to separate your subjects, notes or meetings. They are 7 hole punched and perforated.