1) Paper A4 size: (21 x 29,7 cm) Paper 100g Clairefontaine filigree for ink jet or laser prints. Ream with 250 A4 sheets, 100 g. vellum quality: ivory or white watermark quality: ivory or white 2) Envelopes size 110 x 220 mm: Paper 120g without window. Closing system withself-seal tab with protective strip. Boxes of 250 envelopes. vellum quality: ivory or white watermark quality: ivory or white communication paper, paper