A natural deodorizers made from bamboo charcoal, the bag present in the lemon shell cleans your refrigerators of all bad odours in a duration of one to seven days. What is amazing about the tool is, all the microbes that might have got transmitted to it during the absorption of the moisture get killed when the bag is placed in the sun for an hour at the last of every month. Thus, you can reuse it again! NATURAL: The contents of bag forming the deodoriser is made from organic bamboo charcoal, therefore does not harm REUSEABLE: After kept in the sun for one hour, it ready to be reused SET OF TWO: When one is getting bathed in the sun, you can use the other one offered in the set PROTECTIVE EXTRIOR: The decorative lemon shell ensures the bag is positioned aplty and protects it against damage