The title should carry the spelling Montblanc as one word. Listings are also to be found under Mont Blanc, but searches are overwhelmingly made using the correct company spelling, so that a title written as two words reaches considerably fewer interested parties.
The description should contain the exact model number or designation, the nib width, the type of nib, that is, steel, 14 ct or 18 ct, as well as the colours of barrel, cap, rings and clip. For Solitaire writing instruments, the material should additionally be stated, for example steel, silver, vermeil or gold, and the surface finish, for example thread guilloché or grain guilloché. For limited editions, the number of pieces produced should be named, and also whether the packaging and the service guide are present. The condition is to be described as precisely and as honestly as possible; this saves disputes with the highest bidder later on.
As precise as necessary, as short as possible: all important details should be immediately apparent. A clear layout with different type sizes and emphases helps more than pages of text.