Used as part of the microlinks technique, these rings are used to connect the hair extensions and the customer’s own hair. The hair itself is inserted into the rings, and clamped down to hold the hair extension in place. Copper rings are softer than aluminum rings making them easier to clamp down to close and to open when the customer wants the extensions adjusted or taken out. BRIJON offers two different sizes and four different colors (black, brown, beige and blonde).