This book is ideal for use in labs and chemistry classes. The smooth 20 lb white writing paper is printed with a graph layout. Pages are not numbered. Covers are made from durable black laminate. The book is center sewn and tape bound for durability. Designed for permanent notes. • Ideal for school lab reports and note-taking. • Heavyweight paper is 5 x 5 square/inch quad-ruled for meticulous results. • Center-sewn and tape-bound to permanently secure your notes. • Black laminated cover for durability and strength. This book is ideal for use in labs and chemistry classes. The smooth 20 lb white writing paper is printed with a graph layout. Pages are not numbered. Covers are made from durable black laminate. The book is center sewn and tape bound for durability. Designed for permanent notes. Pocket Sized: No; Book-Binding Type: Sewn; Taped; Book-Binding Edge: Side; Cover Color: Black.