Coir mats are produced from natural coconut fibre. These fibres are cleaned, dried, and pressed into matting. The fibres create a stiff brushing action. The fibre texture scrapes mud and debris from shoes. They are often used in doorways and porches. They are used inside buildings and under canopies. The https://knoxardti.tinyblogging.com/understanding-coir-door-mats-83595231