This envelope contains a single booklet of 5 or 25 leaves, in loose or transfer format. The thickness is indicated with its relative weight and amounts to 14 grams per 1000 leaves.
The loose leaf is recommended both for the decoration of inlaid surfaces, mainly with the use of the bole and the water gilding technique, and for the gilding of smooth surfaces with the oil gilding technique.
The transfer leaf differs from the loose one because it rests on a sheet of tissue paper, which protrudes from the booklet, in order to facilitate and speed up handling and application. This form is always applied with the oil gilding technique and is recommended only for the decoration of smooth surfaces or for gilding to be carried out outdoors.