ESS Microfiber Bag Black NSN-4240-01-633-3498. The bag reduces cleaning time by keeping metal particles away from the lenses and also protects the metal detector's finish from scratches. This one-size-fits-all bag is perfect for consumers who need an inexpensive cleaning kit. Constructed from super-soft microfiber material the bag has an adjustable and detachable strap as well as a drawstring closure. It is the perfect cleaning kit for an electrician's goggles or a Magnagook that needs a cleaning after a thorough cleaning. Great for dry storage and transport of any electronic device. Specifications for ESS Microfiber Bag: Manufacturer: ESS Age Group: Adults Gender: Unisex Color: Black Condition: New Quantity: 1 NSN: 4240-01-633-3498 Package Contents: ESS Microfiber Bag ESS 740-0560: Microfiber BagBlack