Cora BallRemoves plastic microfibres from your laundry, one of the largest sources of water borne plastic. An independent study on the effectiveness of the Cora Ball has recently been published. Summaries are available on Forbes. com or Ocean Conservancy, or to read the full study, take a look here. Every time we do laundry, our clothes shed tiny, unseen microfibres (including plastic) which go down the drains of our washing machines and into our waterways,