Gold-Leaf 23kt-XX-Deep Loose-Book of 25 Sheets, size-3-3/8" x 3-3/8", Surface/Loose-Leaf, Min.-16-Gram Weight. Each Book of 25 sheets has a coverage area of 1.98sq ft. (without consideration for waste or overlap) This product is great for glass gilding and surface gilding. It is loose in the book and should be applied with a gilders tip or other method of transfer. MANUFACTURED IN THE USA! Produced by the last American Gold Beaters! Gold-Leaf 23kt-XX-Deep Loose-Book.