Natural coir mats are made using coarse coconut fibres. The husks are processed to form a dense mat surface. The fibres create a stiff brushing action. The design supports effective dirt control at the door. Coir mats are commonly placed at entrances. They suit both indoor and sheltered outdoor areas. https://coirentrancemat19504.pointblog.net/understanding-coir-door-mats-88756324