Manetti lemon Gold 18kt Patent- -Genuine Gold Leaf information: Each gold leaf pack (box) contains 20 books. Each gold leaf book has 25 leaves measuring 3-3/8" x 3-3/8".- - Each gold leaf pack has 500 leaves.- - Coverage: Each gold leaf pack will cover approximately 30 square feet. - - One booklet covers 1-1/2 square feet. - - Thickness: 0.2 -0.4 microns.