Excellent paper for usage in engineering classes and labs. Smooth, green 15# writing paper is plain, except for printed outline box on top of sheet, and has 5 square/inch grid layout printed on back of sheet. Back grid shows through to front as dimensional guide for drawings and layouts. 3-hole punched to fit in standard 3-ring binders. Each pack is polywrapped. Sheet/Roll Size: 8.5 x 11; Paper Basis Weight (lb): 15 lb Bond; Paper Grade (gsm): 56 gsm; Paper/Media Color(s): Light Green.