how to install the flat tip hair extension

Dear friend
How’s your business going? I hope everything is going well with you.
This is Sun from Yishu Hair products Co.,ltd.
Guaranteed:
- 100% real human hair.
- 100% natural hair.
- 100% no treatment with chemical.
- 100% remy hair (no tangled hair, all hairs are same direction from top to bottom).
- Only combed and washed with shampoo. No lice, no nits.
008613837108995 this is my whatsapp and wechat number
lookforward your reply when you are free
thank