Coir entrance mats use fibres taken from coconut husks. The husks are processed to form a dense mat surface. The fibres create a stiff brushing action. This structure helps remove dirt and moisture from footwear. They are often used in doorways and porches. They perform well in covered external spaces. https://anti-fatigue-mat47911.madmouseblog.com/20432885/an-overview-of-coir-entrance-mats