Linkies hair extensions should last up to three months before needing to be removed/reinstalled/tightened.
The Doctored Locks system features the easiest hair extension installation and removal on the market.
This system is perfect for anyone looking for easy, non-damaging system.

Now Nickel free!
Mixed aluminum70%+magnesium20%+copper10%
The rings clamp securely in place and will not slip out.

Tip: If you experience slippage, the most common problem is not adding enough of the client's natural hair to the ring.