- Plain A4 & A5 NDSG Exercise Book
- 48 pages per book
- 4mm line spacing
- NDSG – Narrow Double Ruling Single Guide
RBE’ educational range of books included exercise books in A4 and A5, for different applications, books such as Feint & Margin, Quad & Margin, NDSG Exercise Book 4mm, WDSG and Speckled Guideline.