A TWO PACK of spray bottles, each bottle with 2 ozs of fluid. ROR is not an optical surface cleaner in the usual sense. It takes a big step beyond routine cleaning. ROR is specifically designed to emulsify and remove microscopic oil residues- a by product of environmental pollution- from the surface and pores of glass and acrylic. When you clean an optical surface with ROR you will observe a measurable difference in brightness and clarity. For the first time, you will experience pollution free, unimpeded vision. Because ROR removes microscopic oil residues, dust has nothing to adhere to allowing the surface to remain cleaner longer. ROR is safe and versatile for all delicate surfaces. It has been tested and used on everything from multicoated lenses to beryllium surfaced contacts and has proven time and again to be the finest and safest optical cleaning treatment on the market today. Invented 25 years ago with professional and amateur photographers in mind, ROR is used today by the military, NASA, astronomers, scientists, hospitals, laboratories and universities. Protect your investment through regular ROR cleaning and maintenance and your equipment will endure and perform excellently for years to come. See better. See clearly. See the difference.