• Hair material: 100% high-temperature resistant synthetic fiber, with an internal structure that mimics the feel and mesh of real human hair. It is breathable and adjustable, suitable for most people. It maintains durable curls, is soft, lightweight, comfortable, easy to use, and dense. • Available colors: black (1#), natural black (2#), brown (4#), black/dark brown (T30), light brown (T27), wine red (TBUG), black gray (Tgray). • Sizes: Small size: hair length 15 cm, hair bag diameter 17 cm. Large size: hair length 20 cm, hair bag diameter 38 cm. Quantity: 2 small pieces / 1 large piece. Both sizes are suitable for most people and can be reshaped or shortened if necessary. • Easy to use: simply gather the hair into a ponytail, tie the extension with the adjustment cord, and then comb it. The extension is easy to wear, beautiful, and generous. Others will think it's your natural hair. • Versatile: This hair extension is suitable for most occasions such as Halloween, concerts, fashion shows, theme parties, weddings, dates, daily use, etc. • Product measurements: Width 15.2 cm, Height 3.8 cm, Length 15.2 cm, Weight 0.075 kg.