Material: Brazilian Human Hairtexture:Straightweight:1.0G/Strandquantity:50 Strands/Pack (1-2 Packs For Highlight Or Lowlight, 2-3 Packs For A Full Head Attachment)Micro Loop Ring Extensions Can Be Easily Applied With Only A Professional Plier: No Glue, No Heat, No Damage, Easy And Safe To Attach And Remove. These Hair Extensions Are Made Of High Quality Hair. It Can Be Blended Naturally With Your Own Hair. Usually, 100-150 Strands Is Enough For A Full Head. The Hair Can Be Washed, Curled Or Straightened. Hair Has Been Dyed. It Can Be Colored Two Darker Shades. Normally, The Hair Extensions Can Last 2 To 4 Months With Good Care. Please Pay Attention To Below Points In How To Care The Hair Extensions.1. Wash And Conditioner Your Hair Every 2 To 3 Days. Don'T Wash Hair Right Away Within 48 Hours After You Attach The Hair Extensions.2. Normal Hair Products Are Ok For Washing Hair. Don'T Put Hair Products On The Attachment Area Where Hair Is Attached. 3. Avoid Using Heating Tool Frequently To Protect Hair Cuticle.4. Never Put Heating Tool Near To The Attachment Area. Because It May Melt The Tip Bond, Leading To Falling Out.5. Tie Hair In A Bun When Swimming, Sleeping Or Doing Exercise.