iScholar Notable Laboratory Research Pad, 8.5 x 10.75 Inches, No Carbon Required, White/Canary (60450) Lab research notebook; research notebook; non-carbon duplicate notebook 100 numbered, duplicate sets Ruled with 4 squares per inch on the front of the page, plain on the back Bound first page, micro-perforated duplicate page No carbon required Lab research notebook; research notebook; non-carbon duplicate notebook, 100 numbered, duplicate sets, Ruled with 4 squares per inch on the front of the page, plain on the back, Bound first page, micro-perforated duplicate page, No carbon required