Saphir Teinture Francaise is a penetrating dye for smooth leather, suede and nubuck. This product can be used to change the leather color from light to dark or as an edge dressing for leather soles and heels. Excellent for smooth leather, suede and nubuck. 50ml - comes complete with a glove and an applicator. Apply an even coat of the dye to the shoe with the applicator. Let the dye dry for 1 hour in a well ventilated area. Please make sure you use the glove to keep the dye away from your hand. Please note that this dye is permanent and cannot be removed once applied.