Microfiber bonnets are multipurpose for carpet and hard surfaces where mild abrasion and superior absorption is desired. This microfiber bonnet measures 17.5 in diameter. It"s positively charged and split into 17 strands which has amazing pulling power for soil. The bonnet advanced microfiber weave absorbs and holds more soil and dirt than regular bonnets. Great as a last step cleaning and drying step for low pile and commercial carpet and for cleaning hardwood floors. • High Quality 17.5 Microfiber Bonnet • Microfibers are Positively Charged to Attract Large Amounts of Fine Dirt and Soil Made in the USA