micro rings, screw rings, silicone inside rings

micro ring link system for stick tip hair, I-tip hair use, Easy to make micro link system , with pulling needle , pliers, etc

1. material by aluminum inside silicone rubber well to protect client's own natural hair

2. size available:  outer diameter x inner diameter x length

5.0×2.8×3.4 mm 

4.3×2.5×3.4 mm

3. colors: black, dark brown, medium brown, light brown, blonde

4. packing: 500pcs or 1000pcs per bottle