100 carbonless duplicate sets sequentially numbered Original (top page) perforated Fully laminated front and back cover Back cover folds over to prevent bleed through between sets and contains current Periodic Table Covers contain quick reference information, i.e., mass spectral interpretation guide, common abbreviations for functional groups and substituents, common solvents and useful equations related to acidity Durable plasticoil spiral binding allows the notebook to lie flat Table of Contents and How to Keep a Laboratory Notebook guidelines included