In an attempt to simplify all our delivery charges and maintain transparency we have summarised the costs below: If you are unsure of the magnification you require, you can ask your Optometrist or go in to a Pharmacy and try on some reading glasses, then take note of the magnification that best suits you. Some information about these lenses: Simple to use | add water to the bifocal lenses to securely adhere them onto your eyewear, converting your regular pair of glasses into a distortion free optically correct pair of bi-focals. They can be used with traditional, polarised or photochromic sunglasses, narrow lenses or high base curve wraparounds. Hydrotac ® Lenses are designed to fit any style. Each lens is optically correct from edge to edge, providing distortion free magnification.They are ideal for sports such as fishing where additional magnification is often required. When removing lens, simply place your fingernail under one corner and peel off gently. These lenses are reusable.

Bifocal reading lenses：attach the reading lenses, the glasses will become bifocal lenses, see close objects clearly through the attached lenses and through other areas look at distance . Lightweight & thin design | designed to be minimally noticeable; add the magnification you need to your favorite pair of spectacles without a bulky look.Large 1.2 inch diameter suitable for use with Diving Masks, Goggles, Ski Masks, Reading Glasses, Sunglasses and Much More Magnified reading anywhere: convert any eyewear into magnifiers; safety glasses, swimming, scuba, ski, or cycling goggles, and more. whether working or playing, you don’t have to give-up magnified optics. Turn your glasses, sunglasses, diving mask or goggles into bifocals with superior clarity. Great for those with distance prescriptions or for non prescription eyewear. high definition vision】optical grade clarity lenses leave you with the clearest, sharpest, and brightest eyesight possible. even small print is easier to read and it will allow you to focus up close on objects.

no water/adhesive required】our bifocal lenses are designed for optimal adhesion. no adhesives and water is needed, won't leave any marks on your precious eyeglasses. made of super soft material that can trim to fit your mask or goggles. Apply one lens at a time to your eyewear, positioning close to the nose bridge and low on the inside. Clear vision：if you wear the sunglasses and have trouble seeing near clear, maybe you just need a pair of glasses, choose the correct degree, it will help you see close objects clearly, like your phone screen. Hydrotac™ lenses turn any glasses into magnifying glasses with superior clarity. Just add water and adhere. Lenses are 1.2 inches in diameter and are removable, reusable. Great for those who require magnification for eyewear that is not prescription, like sunglasses. Hydrotac™ lenses can be trimmed to size with a sharp scissors and positioned anywhere on the lens. Use the included protective case to keep them safe when not in use.

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One of the best features is the fit so snugly to the inside surface of your sunglasses that when someone is looking at you, they are undetectable from the outside. You will enjoy the benefit of magnification and no will even know you have them on. This is a 'brand new' product, never made like this before. Zcifi and Hydrotac use brand new techniques and materials. They are more flexibly, thinner, smaller, environmentally friendly, UV protected against yellowing and more adherent than ever before.

By using a lint free cloth carefully pat away any excess water from the lens. Allow the lenses to sit and dry in place for 1-2 hours. Keep in mind that your vision through the lenses will be a little blurry until they are completely dried. Hydrotac® Lenses- soft, tiny removable lenses that can change any style of sunglasses or safety glasses in to an instant set of bifocal readers at a fraction of the cost of prescription bifocals. superior clear vision】optical grade clarity bifocal lenses with ultra-sharp vision grant you to see every close-up detail with crystal-clear precision as if you wear real reading glasses.You don't have to remove lenses after every dive, simply rinse your mask gentlywith tap water to remove all salt residues. Hydrotac® lenses are soft, pliable plastic lenses shaped in a half moon. This ultra thin design clings to the inside of your sunglasses, safety glasses or diving goggles through molecular attraction. No adhesives are needed. high-quality material】mature environmental protection tpu material which is high tension, high tensile strength, toughness, and aging resistance. soft and flexible enough to attach to any eyewear. These lenses are made from an adherent silicone like material that does not require a doctor's prescription. These lenses simply give you the magnification you need when you need it. Simply apply our lenses to the inside of your sunglasses, diving mask, safety goggles or any other eyewear. Before installation, make sure your eyewear and your hands are spotlessly clean by washing them with detergent and hot water.

Inconspicuous and lightweight design: these adhesive reading lenses are designed to be thin and lightweight, allowing for easy integration with your existing eyewear. with a focus on preserving aesthetics and comfort, the lenses offer a subtle, non-bulky magnification solution that won't interfere with your everyday activities or compromise your personal style. non-adhesive/water technology】 our bifocal lenses are designed for optimal adhesion. no adhesives and water is needed, trimmed to fit your mask or goggles with sharp scissors, and can be removed and reused on different masks or goggles if needed. Many divers/snorkelers miss out on all the small details simply because they don't have the magnification they need. Lots of individuals particularly over the age of 40 use some sort of magnification on a regular basis for reading. Divers need to read their compass, regulators, computers gauges and other instruments.Hydrotac®Lenses leave no residue. They are instantly and easily installed with water and may be removed and reinstalled at any time.