It will likely be made of finely floor coconut or peat moss. The “peat” of coconut coir, pith seems like finely floor coconut or peat moss. It’s so compact and absorbent that when you were to implement coco peat as your only growing medium, you could drown out the roots https://andredthwk.sharebyblog.com/37603002/5-essential-elements-for-coir-matting