Sogoshikaku Gakuin, Underlined Architectural Regulations Handbook, Regulations Edition, 2026 Edition (B5 size) Underlined, 0.5mm Frixion pen specification Index stickers applied How to use the indexed regulations handbook Color index (blank index stickers remaining after application) Additions 〇 Underlines are drawn using a ruler, following the 2026 guidelines. 〇 Red and blue Frixion pens are used for underlining. The underlining is carefully done with a ruler, making it easy to read. ※ Please note that although a ruler is used for underlining, there may be some variations in distortion, line thickness, density, overlines, ink bleeding, and folds. Save time on underlining and use that time for studying, and get ahead of other examinees. The plastic case is for protecting the book during shipping. We pack and ship the book, but please understand that the plastic case may be damaged during shipping.