Nikon 843 Optics 5 in 1 Cleaning Kit Brush Cloth Fluid 1 Kit The Nikon 5 in 1 is designed to make sure your scope is properly maintained and kept in perfect working order. The Nikon 5-in-1 Optics Cleaning Kit 843 contains a microfiber cloth, 100% goat's hair lens brush, a mini cotton swab and optics-quality lens fluid with in a neoprene case to hold it all.