As a bonus, we are also including 30 polystyrene Weigh Boats to go along with it. The smallest one measures 1.75 x 1.75 with a depth of 1/4. The next one measures 3.5" x 3.5" with a depth of 1". The largest one measures 5.5" x 5.5" with a depth of 1". Weigh boats are very convenient, easy to pour from, and save contamination and wear and tear on the balance. They are very popular to use in industrial and clinical laboratories throughout the country. " " "