Item Name: Defogger Anti Fog Spray Diving Glasses Antifog Mist Free Cleaning Spray. For this product to work most effectively, it must be reapplied on average every three to five days or every time you clean your lenses.Anti-fog sprays are suitable for larger applications or more expensive optics and are perfect for any type of lens.Spray a small amount on lenses and rub with fingers until completely dry, then wipe with a microfiber or cotton cloth.Long-lasting non-toxic formula for wet or dry applications.Fits all lenses including sunglasses, swimming goggles, diving masks, safety goggles, ski masks and snowboard masks.Specification:Name: for Goggles antifogging agentFeatures: Nano productsSpecifications: 10mlSize: Length 6cm The Product Including:1Pcs Goggles antifogging agent (Two packages will be shipped randomly) Instructions:1. Clean the inside of the lens before spraying the anti-fogging agent.2. Drip 1-2 drops on the inside of the lens and spread evenly with a sponge head.3. After the natural dryness, rinse the lens with water and dry it.4. Soak the goggles in the water before swimming, and then play the anti-fog effect after drying.note:The anti-fog time of the anti-fogging agent is relative, so it is required to spray the anti-fogging agent before swimming. *Please make