Coir mats are made from coconut husk fibres. These fibres are stiff, coarse, and durable. The structure suits doorway placement. Foot traffic activates the cleaning action. Less dirt reaches internal floors. The Origin of Coir Mat Materials Coconut shells provide the raw fibre. Processing prepares the fibres for mat production. https://sergiokkigc.blogminds.com/an-introduction-to-coir-mats-35909456