Product information for 24K Gold Leaf: 99.9% Au Size of each leaf: 3 1/8″ x 3 1/8″ Thickness of each leaf: not less than 0.107 microns 1 Booklet covers: 1 5/6 sqft Our 24K Genuine Gold Leaf is also available in 4 booklet packages for both the loose and transfer types. A total of 100 leaf sheets.