Traditional 270 GSM Bristol smooth paper with bright white surface for high contrast artwork. The smooth surface is perfect for fine detailed work. Bristol pad is dual loop wire bound construction and features "In & Out" pages (patent pending) that allow you to remove sheets from the pad for drawing, reworking, scanning, and more. Upon completion, simply return the sheets into the pad. Weight: 100 lb/ 270 GSM Feel: Smooth Color: Bright White Format: In & Out Pages® Side Wire Bound Pad Acid-Free Made in the USA