This Closure is recommended for Deep Curl Hair Extensions. 

Each closure unit is individually implanted into the base, knotted, and secured with a strong adhesive to give you a natural undetectable leave-out as if the hair was coming directly out of your scalp.

Excessive tugging, brushing/combing, scratching with fingernails, vigorous washing, or direct product application may cause thinning of your Anya Hair closure unit. With Proper care Anya Hair closure units can last up to 7-9 months.

Dimensions: 3.5" wide and 4" long.

Bleach? NO bleaching of the knots is necessary.