For each item, tell us its size (such as A4 or A5), number of pages, paper weight in gsm and paper type (uncoated, silk or gloss). Say whether it is folded, saddle-stitched as a brochure, or endorse-folded. Include the envelope size (DL, C5+ or C4), or say if it is a postcard without an envelope.
List separate items in order, including how many letters there are. The automatic check covers a letter group and up to three other different printed items; describe larger packs too and we'll calculate those separately.