You will enjoy micro rings hair extensions half head 90 minutes full head 150 minutes one of the newest application systems that is proving a hit with many celebs around the world the tiny undetectable rings are applied to your hair the hair extension is then clamped holding it to your normal hair the method is harmless and has no adhesive heat or chemicals the micro ring hair extensions last up to 3 4 months and can be repositioned and pushed up as your natural hair grows out