Card is 5 x 7 inches, envelope is 5.125 x 7.125 inches, 11 mil thickness. Great to receive with gifts or a simple "Thank you". * 11 mil Thickness * Printed on white 60lb. acid free high gloss card stock with a smooth surface on the inside for writing. * Printed with Canon Archival Inks which are archival up to 200 years * Thanks to its brilliant white tone, color on these cards pop and blacks are rich and deep. * Packaged in a clear acid free bag.