Dear Sir, Our Antirain Watermark Remover only using 1 time to remove the watermark on your windscreen. After that you need our Antirain nanotech glass coating to protect your screen from watermark problem. Antirain nanotech glass coating can hold 1 year per apply. Antirain Leather Cleaner & Protective Lotion no need spray with water. In our packing we have Antirain leather cleaner & antirain leather lotion. First you can use leather cleaner to clean up your leather seat if the seat ar ... ...