Rediform Laboratory Research Notebook - 200 Sheets - Sewn - 9 1by4 x 11 - Brown Paper - BrownPressboard Cover - Micro Description: Laboratory Research Notebook features 100 numbered duplicate sets with both sheets ruled with four squares per inch on the front of the page and plain on back. First sheet is bound. Duplicate is microperforated for easy removal. Notebook has a genuine Pressboard cover stitched binding and three-hole punched edge to secure notebook in standard three-ring binders. Features: Size: 9 1/4 x 11 200 Sheets. Sewn. Brown Paper. BrownPressboard Cover Micro Perforated Numbered Perforated Punched Color: Brown Country of origin: Canada Brand Name: National Model No: 2088-RED43649