Just stick it on your glasses or sunglasses! You can peel it off and reapply it. Fishing, golf, motorcycling, diving... We've received many inquiries about how it differs from Hydrotac, so we'd like to compare them here. * Cheaper * Water won't get in. You can apply it directly. * Comes with a dedicated case (hygienic and convenient for carrying) * Soft, so it works even with lenses that have a strong curve! * Can be cut freely. Neo-Tac is round, so you can cut it in half and use it on two pairs of eyewear. 【Caution/Warning】 Do not use this product (Neo-Tac) while driving. It can be very dangerous due to image distortion or the lens peeling off. Product Name: Neo-Tac General Medical Device: Lens for vision correction General Name: Eyeglass Lens Manufacturing and Sales Notification Number: 18B3X00036000016 We are not considering discounts. #neokyotoshi