Montblanc also offers ruled refill books for the Diaries & Notes collection, which in boutique specialist trade was temporarily not correctly communicated. The individually available books cost without the expensive leather cover around 21.50 euros and have a plain black cardboard cover with silver star, so only the inner book has to be exchanged when it is fully written. The paper is ink-fast enough for common fountain-pen inks of various manufacturers; bleed-through occurs only in exceptional cases. The price lies clearly above commercially available notebooks, which with intensive daily use is a cost factor. Concrete size variants and colour specifications (e.g. black instead of only red, mustard, caramel) are not finally documented; an on-site appointment in the boutique is therefore recommended.