THE SMALL DESK LIBRARY · PRACTICAL GUIDE
NEOCRITZ regular or large: choose by your longest tool
A larger case is not automatically a better everyday case. Start with the contents you need to carry, then decide how much spare space is useful.
Published October 23, 2026 · Source-based editorial / not product testing
Make a real packing list
Lay out your daily pens, an eraser and any small ruler. Move duplicates into a separate pile. If the second pile is mostly backup items, you may not need to carry it every day. Count unusually thick tools separately; a marker and a slim ballpoint do not occupy the same space.
Compare the shape, not just the name
KOKUYO lists closed exterior sizes of 85 × 50 × 195 mm for classic regular and 90 × 55 × 205 mm for large. These are not interior measurements. Small differences on three axes do not tell you how a rigid ruler will fit through the opening. Do not calculate a usable capacity by multiplying exterior dimensions.
A practical decision
Try your current kit in the pouch you already own. If it closes easily and you can find every item, replacement may offer little benefit. If one essential tool is the obstacle, measure that tool and ask the seller about usable internal clearance. We have not tested either size; this is a fit-checking method, not a capacity verdict.