S=24-Line,M=24-Unlined. Set of 24 Black Lined Notebooks. These A5-sized lined notebooks feature an elegant appearance and are offered at a highly competitive, budget-friendly price point. The black covers can be freely decorated or painted to your liking they are pleasant to the touch and provide a smooth, comfortable writing surface. Crafted with thick 80gsm paper, these notebooks are suitable for use with all types of writing instruments, effectively preventing ink bleed-through while offering a silky-smooth texture for an exceptional writing experience. They lay completely flat at 180 degrees, making note-taking and reading easier and more efficient. Each lined notebook contains 30 sheets (60 pages) of standard lined paper. Weight: 4.11 lbs.