Need extra writing space for your HOBONICHI Original Planner? This set of 3 ultra-slim squared notebooks conveniently slides into the external pocket of your HOBONICHI planner cover for additional note-taking. Three notebooks at 52gsm are included, with 24 sheets (48 pages) of Tomoe River Paper featuring micro-perforations. Each notebook is sewn-bound and measures A6 size (105 x 148 mm) with a grid pattern. All notebooks are made in Japan.