Quick answerThe Weeks Simple Grid Companion Notebook is a long, slim Tomoe River / Sanzen paper notebook for compact weekly setups, micro-journaling, notes, lists, and pen testing. It has 190 perforated grid pages and a Weeks-style format that pairs neatly with slim planner covers and Magnet Weeks setups.Paper, pen, and ink notes52gsm Tomoe River / Sanzen paper is known in the planner and fountain pen community for a smooth writing surface, low feathering with many inks, and a thin page profile. Because the paper is thin, ghosting can show; dry time, smudging, and bleed-through depend on each pen and ink combination.Size and layout Size: Weeks-style long slim format Paper: 52gsm white Tomoe River / Sanzen paper Pages: 190 pages Grid: classic 0.15 in / 3.81 mm grid Pages: perforated for clean tear-out Cover: PU laminated cover with gold foil branding, available in Black or Pink Best forChoose Weeks if you love a narrow planner stack and want extra Tomoe River paper for weekly notes, tiny habit trackers, meal plans, budget lists, ink swatches, quick journaling, or an everyday-carry companion beside a dated weekly planner.Related guides How Aura Estelle tests TRP / Tomoe River paper Best planner for fountain pens Pens for Tomoe River paper Tomoe River / Sanzen paper planners and notebooks Ships fromAura Estelle ships from Los Angeles, USA for fast US shipping and Burnaby, BC for Canada and international orders.