1. When measuring with a tape measure, first open the tape measure to a little longer than the length of the measured object.

2. The big number on the tape measure represents centimeters, and locate the largest number within the length of the measured object.

3. The smallest scale on the tape measure is millimeters, and the largest number plus the smallest number of scales can read millimeters.

Tape measure:

Tape measure, also known as Luban ruler, or Wengong ruler in Taiwanese, is a soft measuring tool made of plastic, steel strip, cloth and other materials. It is easy to carry and can measure the length of some curves. The measuring tape used in the clothing industry is a tape measure, also known as a soft ruler, and the materials used are PVC plastic and glass fiber. The tape measure can be rolled up because there is a spring inside the tape measure. When the tape measure is pulled out to measure the length, the length of the ruler and the spring is actually stretched. Once the measurement is completed, the spring inside the tape measure will automatically shrink, and the ruler will follow the action of the spring force. Shrink, so the tape measure will roll up. The main type of tape measure is steel tape, followed by fiber tape, which is the tape that everyone often sees. Many people say it is a cloth ruler, and there is also a waist measurement ruler (tailor ruler and clothing measuring ruler are in this category). In the southern part of my country and Hong Kong, the tape measure is usually called a soft ruler or a drawing ruler. The material is PVC plastic and glass fiber. The glass fiber can prevent the tape from being stretched during use.