SMELLWELL FRESHENER INSERTS. Absorbs moisture, removes odour & leaves a fresh scent. MOISTURE ABSORBER:- Our Swedish Blend Of Activated Charcoal And Minerals, Developed By Chemists, Absorbs Moisture Which Removes The Environment Where Smelly Bacteria Thrives In. 100% NATURAL:- The SmellWell Shoe Smell Eliminator Consists Of 100% Non-allergenic Non-residual Moso Bamboo Charcoal Pouches That Are Not Only Gentle On The Environment But Also On Your Shoes. Place The Natural Fresh Air Purifying Bags Where Air Can Circulate Freely In Order To Refresh Them After Each Use. Lasts Up To 6 Months If This Is Done Effectively.