describe:1.100% Human HairOur micro-ring human hair extensions are made of high-quality hair. The hair does not get tangled, fall out or split. Moresoo is committed to providing you with a better shopping experience.2.Easy to Install and RemoveOur micro ring hair extensions are very harmless and suitable for everyone to install and remove intelligently. No heat or glue required and virtually harmless to your own hair and scalp.3. [Product Details] Each stick is about 1 gram, each pack is 50 grams. Takes 2-3 packs for full headwear, 3-4 packs for added length and volume. Our micro loop hair extensions are available in a variety of colors and sizes, if you don't like one and don't know which one to choose, you can contact us for advice.4. [Usage Tips] All hair extensions are dyed with different colors during processing. If you want to re-dye, light colors can be dyed darker, but darker colors cannot be dyed light colors. The hair can be treated and styled like your own hair (washed, curled, etc.). But the temperature is controlled below 180C. Please note: We do not recommend straightening body wavy hair.5. [Customer Service] If you are not completely satisfied with the product you received, you can contact our customer service staff in time to solve the problems you encounter. In order to bring you a good shopping experience, we will do our best to satisfy you!Specification:Hair material: real hairCan it be dyed and permed: Can it be permed and dyed?size and weight:16 inches: 40g18 inches: 50gPackage includes:1 x human hair wig