This is a set of two wiper blades, available in sizes from 350mm to 600mm. All combinations are the same price. To offer the best possible price, we may cut the packaging for shipping as shown in the fifth photo, to fit the smallest possible size for宅配便 (courier service). The available sizes are 350/375/400/425/450/475/500/525/550 (currently out of stock)/600mm, a total of 10 sizes. Please specify your desired sizes after purchase. Example: 375 and 600. For combinations of 350-450mm, we have a separate, cheaper product available, so please bid on that one. Please note that 550mm is currently out of stock. Teflon processing is a fluorine resin treatment, commonly used on frying pans. Teflon-coated frying pans are non-stick and easy to clean, making them very popular. These excellent properties are applied to the wiper blade rubber, resulting in incredible water repellency. The most common U-shaped lock adapter is used, so it can be installed on most vehicles unless they are very specialized. To choose the correct size, measure the size of the rubber part of your current wiper blades.