If you have any question about item, please contact meLongest Hair Proportion: >=10%Chemical Processing: StraightenedTexture: Body WaveMaterial Grade: Remy HairCan Be Permed: YesLongest Hair Proportion: Can Be Restyled 1. Find correct temperature( 160~180 Celsius degree or 320 ~360 Fahrenheit degree!) for hair curling.2. Time control is very important, we will suggest let the wand/curl sits on the hair around 8~10 seconds with proper temperature.3. Apply some hair spray will keep the curl pattern durable for whole day. Can Be Dyed & Bleached 1. Never use hair products with alcohol in them. They can damage your extensions.2. Never go to bed wearing wet hair extensions.3. Wear a swim cap while taking a dip.4. Condition your hair regularly after dyeing or straightening to keep its charming.