Col-o-ring Testing Book (Standard Size)
Each book contains:
• 2”x4” with die cut rounded corners
• 100 sheets of 100lb/160gsm European acid-free bright, natural white paper
• slightly toothy paper but not enough to catch even the sharpest dip nib
• sturdy chipboard covers letterpress printed with a crisp application of "afterburner" black
• handy split ring so pages can be removed, rearranged and reinserted as needed
