A natural solution to a smelly fridge, the Kuro Cube White Charcoal Natural Fridge Deodoriser keeps your fridge fresh & free from smells, & even extends the life of your fresh fruit & vegetables by absorbing ethylene gas. The Kuro Cube natural fridge deodoriser is made from compressed white charcoal, using traditional techniques to turn Korean Oak into the highest grade of charcoal available (and yes, it is actually black). It is very absorbent, & can be used to purify & freshen the air in any small, enclosed space. At the end of its life, the Kuro Cube can be crushed up & sprinkled on the garden, where it will fertilise plants & balance the soil p H. Occasionally exposing your Kuro Cube natural fridge deodoriser to sunlight will help it dry out, & extend its useful lifespan.