This umbrella came with a huge crack in the plastic portion of the top. I’m still using it bec they were going to replace it. In the meantime I’ve noticed that quality of this umbrella is poor. 
When it’s down poles come out of the fabric pockets so they have to be put back in each time it’s cranked back up. There are hooks near the top of the umbrella and not sure of their purpose but when the umbrella is down there is no tie so the fabric just flails. The crank shaft came with a small dent in it. I don’t think this umbrella is worth any money at all and I cancelled my replacement.
Addendum. When the umbrella is cranked fully open it immediately uncranks itself to this. So I will use a bungee to keep it fully open.