Hold a book, sit in a chair, sit in a third of the chair, and put a book on your knees with your legs together. Stick to it for 20 minutes at first and add 5 minutes every day. Later, the thickness of the book can be reduced.

What's more, it's good to stick it on it.

Skinny legs have an effect

This is for external use.

Suitable for teenagers

You can go to Taobao to have a look

They want to be good housekeepers.