Natural coir mats use fibres taken from coconut shells. The material has a naturally rough texture. The structure suits doorway placement. Foot traffic activates the cleaning action. This reduces the amount of debris entering a building. How Coir Fibre Is Produced Coir fibre comes from the outer shell of coconuts. https://remingtoncnrvw.liberty-blog.com/39752222/an-introduction-to-coir-mats