Measuring cups have measurement sizes clearly marked in both imperial and metric units. They're designed with handles that are level with the top of the bowls for easy leveling, and the bottoms rest on the counter without tipping.
OXO Good Grips® Stainless Steel Measuring Cups (Set of 4)
This revolutionary measuring cup features a patented angled surface that lets you read measurement markings by looking straight down into the cup. This eliminates the need to fill, check, and adjust the amount of liquid you are measuring.