Tinksky 50pcs A4 Size Tattoo Thermal Stencil Transfer Papers Paper size: A4 size. Each sheet consists of 4 parts: 1. Top layer is white. This is the layer that your image will be transfered onto. 2. Second Layer is not bound and is purple. Typically this layer is thrown away. 3. Third Layer is the Carbon (blackblue paper). By pressing on this layer the blackblue coating is transfered to the upper sheet.