HYGEN[TM] microfiber is proven to remove 99.9% or more of tested fungi, viruses and bacteria with water alone Addresses big spills by absorbing up to 24 oz. of liquid Patented zig-zag design is made of polyester and polypropylene for added scrubbing power Optimized face material construction balances drag force and cleaning efficacy for an effortless experience Tested to withstand 200 launderings to CDC guidelines in hot water (160°F) with chlorine bleach Absorbent inner layers help hold enough solution to clean up to 250 sq ft. Fits on HYGEN[TM] 17" Quick Connect frame 1863893 & Q560