Each piece is 2cm wide! We often deliver them in 4cm lengths, so please cut them to 2cm and apply. [52cm, Natural Brown, 3C] ※ Level Scale: 4 tone. Merit Hair: This is our original seal extension, a perfect blend of the highest quality Japanese-made artificial hair and the finest human hair. ※ If you would like to purchase more pieces, please feel free to comment. Regarding Merit Hair: You can use curling irons and flat irons without issue. The quality is very close to human hair, so please rest assured. Over 90% of Remy hair on the market is hybrid. The quality of Remy and hybrid hair is exactly the same, making it impossible to distinguish even for professionals, so please be careful not to be deceived. Please also note that some Chinese-made artificial hair can be of significantly lower quality. We receive many opinions that the color is different from the photos, or that it appears lighter or darker than in the photos. Due to the nature of seal extensions, the appearance can vary depending on the time of day, the lighting, and the individual. Please purchase at your own risk, as quality also varies from person to person. Occasionally, buyers request unreasonable returns, but we will not accommodate them. (Please be especially careful if you are buying during peak season.) In particular, some people try to threaten us with the reason that the color is different from what they expected after changing the number of pieces, but please confirm that you are purchasing at your own risk.