Entradalopes 190 Bright is a combination of Moab's award-winning 100% cotton, dual-sided Entrada Rag Natural (190 gsm) sheets, with matching envelopes. The paper is 7 x 10" and is scored so it can be folded into 5 x 7" cards. Entrada is an archival acid- and lignin-free paper with an expanded color gamut, natural contrast and high ink load. It is compatible with both dye and pigment inks, however Moab recommends using pigments. The included envelopes are made of alpha cellulose (120 gsm) and are not inkjet printable, however Dye ICC profiles are available.