You will enjoy micro ring hair extensions with brazilian hair approx 4 5 hours or nano ring hair extensions with brazilian hair approx 4555 hours natural hair and extensions are combined to form single strands using 5mm silicone lined micro rings or nano rings and luxury 1g brazilian virgin hair extensions lasts for 3 4 months before re tightening hair can re used for up to a year this method looks completely natural and is easy to maintain once the hair is fitted the styli