Each piece is 2cm wide! We often deliver them at 4cm, so please cut them to 2cm and apply. [52cm, Cool Light Brown] ※ Level scale: 9-tone ash. Merit Hair: This is our original seal extension, a perfect blend of the highest quality Japanese-made artificial hair and the finest human hair. Although it's Merit Hair, it can be curled and ironed, and the quality is very close to human hair, so please 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, but please be careful not to be deceived. Even with artificial hair, the quality can be quite poor if it's made in China. Please be aware of this point as well. We receive many opinions that the color is different from the photo, or that it's lighter or darker than the photo. Due to the nature of seal extensions, the appearance differs depending on the time of day, the way the light hits it, and the lighting, so please purchase at your own risk. Occasionally, buyers demand unreasonable returns, but we will not accommodate them. (Please be especially careful if you buy impulsively during the high season.) Especially, there are people who try to intimidate us by changing the number of pieces and claiming the color is different from what they expected, but please confirm that you are taking responsibility for your purchase.