Which guard size is used to leave hair approximately ¼ inch long?

The guard size that leaves hair approximately ¼ inch long is indeed the number 1 guard. When using clippers, guard sizes indicate the length of hair that will be left after cutting. Each guard number corresponds to a specific length, with smaller numbers leaving shorter hair.

The number 1 guard typically cuts hair down to about 1/8 inch or 3mm, which is quite short but still provides some coverage. When you want to achieve a length that is close to ¼ inch, it's common to reference the number 1 guard as it is widely understood in hair cutting practices that this size can leave a bit of length while keeping the cut very close.

Understanding guard sizes is crucial for hair design as it impacts the style and finish of the haircut. Each size serves a specific purpose in achieving the desired look, making it essential for anyone in the hair design field to be knowledgeable about these measurements and their practical applications in cutting techniques.