As a boot kipper, a sheet made of desiccant charcoal deodorizer can be rolled up to fit perfectly on boots (one size fits all and long short) to ensure the odor (sweat). Made with moisturizing desiccant for leather and storage. It contains an antibacterial agent that prevents the growth of bacteria, so it is also recommended for long-term storage. How to Use: Roll it up according to the shape of your boots. Bend it to the tip of your shoes. You can cut it freely when storing shoes, so you can cut it in half and dip it into shoes. (Materials, Compositions, Effects) B-shaped silica gel, charcoal, activated carbon, antibacterial bonarex non-woven fabric; Effect: (Dehumidifying effect) Approximately 1.4 fl oz (40 ml) in a pair of moisturizing effects: 4 great odors and other odors (lasting effect) dry in the sun once every 2 months, it will improve its effectiveness and keep your shoes. Shelf Life: Approximately 12 months (after the adsorption agent has been used to clog and reduce the effectiveness, so replacing the product is effectively).