The OEM Tops Second Nature Recycled Perforated Top Pad is designed for efficient writing and note-taking. Each letter-size pad contains 50 ruled canary sheets with a red margin rule, made from a high percentage of recycled material to help conserve the environment. The 16 lb. paper resists bleed-through, ensuring clean and clear writing. Featuring Letr-Trim perforation for easy sheet removal, this top-bound pad also includes a sturdy 30 point chipboard backing for added support.