• Effective shoe cleaner: the shoe deodorizing cushion absorbs moisture and leaves a fresh scent. • Long-lasting freshness: provides up to 4 months of fresh scent and can be reused for up to 1 year. • More economical and effective than spray and powder: ideal for any shoe and free of chemical additives. • No white stains: leaves no residue on the shoe or socks. • Easy to use: place the insoles in the shoes overnight and recharge under sunlight.