Xs = 8-Pack, S = 24-Pack, M = 50-Pack, L = 100-Pack. Offering excellent value, these notebooks are crafted from high-quality materials and are ideal for both academic study and daily use. Optimized for Learning: Features a 180-degree lay-flat design with sturdy binding. The cover is highly durable, while the interior pages are made of beige paper to help reduce eye strain; the paper is thick and premium-grade, effectively preventing ink bleed-through. Convenient Size: Measuring 8.15 x 5.5 inches, these notebooks are compact and portable, fitting easily into a backpack or pocket. Efficient Work & Study: The interior pages feature ruled lines, making them suitable for both students and professionals. Versatile Applications: Perfect for completing homework, journaling, sketching, and planning. Weight: 8.71 lbs.