With advancements in concentration levels, measuring by eye just wonít cut it anymore. The CARPRO Measuring Cup resolves this with a simple, screw on solution for mixing your concentrated cleaners and protectants. Clearly marked for measurements in milliliters and fluid ounces, the CARPRO Measuring Cup securely attaches to your CARPRO bottle, or any other bottle with a 28mm thread. The CARPRO Measuring Cup is easy to operate. Simply squeeze the bottle and pour. Thatís it. And since it screws securely to the bottle you wonít have to worry about any spills or leaks.