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. From Coconut Husk to Entrance Mat The husk surrounding the coconut is the source https://danteknllg.angelinsblog.com/37986995/an-introduction-to-coir-mats