Pre Bonded Hair Extensions

I would be able to buy hair well and add the nail tips on myself. But how do you add nail tips for hair extensions? I've searched and searched online and can not find the answer. It would therefore be hand tied hair or hair undone I need to buy.
I usually buy already attached hair before storage .. but I think the links are so cheap they are soft.
So I would tie the hair myself. keratin nail tip.
Anyway help would be fantastic! x

Doing your own hair extensions are pre-pasted something to avoid. For good hair extensions pre-bonded requires expensive materials. The best thing to do is find a good supplier of hair extensions Pre-bonded, that way you save on expensive equipment.