Each piece is 2cm wide! We often deliver them in 4cm pieces, so please cut them in half to 2cm before applying. [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 want to purchase more pieces, please feel free to comment. Regarding Merit Hair: You can use curling irons and flat irons without any problems. It's very close in quality to human hair, so you can rest assured. More than 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. Also, please note that the quality of Chinese-made artificial hair can be quite poor. 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 varies depending on the time of day, the lighting, and the individual. Please purchase at your own risk, as there are individual differences in quality. Occasionally, buyers demand unreasonable returns, but we will not accommodate them. (Please be especially careful if you are buying during the high season.) Especially, there are people who 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 responsible for your purchase.