One-subject Environotes Wire-bound Notebook contains 20 lb. writing paper made with 30 percent sugarcane post-agricultural fiber and a high percentage of post-consumer material. Notebook carries USDA Bio-Preferred Certification. High-performance paper allows writing on both sides. It is smooth and college-ruled with a margin. Covers are made of a heavy-duty, 50 point chipboard for reliable writing support. Wire ends are coil-locked for snag-proof performance. Each notebook contains 70 sheets of writing paper.