How to describe the old man's hand?

The sentence describing the old man's hand is as follows:

1, every finger of the old man's hand can't stretch straight, and there are cocoons inside and outside. The whole thing really looks like a small handle made of branches.

Grandpa's hands are obviously not as flexible and powerful as before, but they are still so wide, so thick and so warm.

After years of hard work, these hands are as rough as old pine bark, the back of the hand has cracked a series of holes, and the palm has also worn a thick cocoon.

Grandpa's hands are so warm, so rough and so precious.

5. Rough and thin hands are covered with almost worm-like blood vessels, which are blue and purple.