How do micro rings attach hair extensions?

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Micro ring hair extensions, which go by other names such as micro bead or micro loop extensions, involve no use of glue, heat or sewing to attach the extensions to the hair. A strand of your natural hair will be threaded through the micro ring/loop made of metal. The extension will be laid next to your hair, and the ring will be clamped tight with a special tool.
This procedure is repeated on different sections of the hair until the right amount of length and volume is achieved.

One benefit of micro ring hair extensions is that they can usually be adjusted and reused during maintenance appointments. However, proper installation is important—if the rings are too tight or too heavy, they may cause discomfort or unnecessary tension on natural hair. For the best results, it is recommended to have them applied by an experienced hair extension professional.