Keep your ink collection organized and catalogued with the Col-o-ring Ink Testing Book. Contains 100 sheets of bright white160 gsm European paper. Acid-free.
Each 2" x 4" book has a sturdy chipboard cover, is bound with a split-ring so that you can remove, rearrange and reinsert pages as needed.
Col-o-ring paper has been rigorously tested to ensure that inks would not feather, bleed or show through. Inks can be tested with fountain pen, glass pen, dip pen, swabs or paintbrush on the front or back of the sheet.