Our 5mm silicone-lined micro rings (made from aluminum) are very popular as they have protect the natural hair, provide extra grip and can be reusable. Micro beads are used to apply stick tipped hair and also micro-ring wefts. As the keratin tip is not fused with your natural hair it makes the i-tip (micro-rings method) more appealing as no glue, heat or adhesives are used. Depending on hair type, a re-fit is usually recommended every 2-3 months. Compatible with our 1 gram i-tip strands.