To install J-hook wiper blades on Bosoko with OEM specifications, start by gathering your tools: new J-hook wiper blades and a towel to protect the windshield. Lift the wiper arm away from the windshield cautiously, as it may be spring-loaded. Place the towel under the arm to prevent scratching if it snaps back. Locate the release mechanism on the old blade, which could be a tab or button. Press it and pull the old blade straight down and away from the arm. Match the connector of the new blade with the arm's size (either 9*7mm or 9*11mm). Slide it into place until you hear a click. Lower the arm gently back onto the windshield. Repeat for the other blade. Remove any protective sheath from the new blades. Test them by spraying washer fluid and running the wipers to ensure smooth, streak-free operation.