The last R of the Triple R principle stands for recycling. The last stage of the waste hierarchy is to recycle. To recycle something means that it will be transferred again into a raw material that can be shaped into a new item. However, there are very few materials on the Earth that cannot be recycled or needs to learn of what products can be recycled and what they cannot. By carefully choosing the products that can be recycled, it can be the first step towards efficient recycling