With a little reworking excellent flagpole ...

The 4 aluminum tubes are unfortunately held at the junctions a little too small in diameter so they have some play.
This is what I get but with a little duct tape under control. Once wrapped around the schmallere piece and already sits close the connection.
This should be repeated even at the lowest pipe that belongs in the ground socket. So you also have a stronger connection here.
If man has done this is the mast much more stable in itself.
The first storm has already survived. With very strong Böhen but I recommend obtaining the flag.

This required by the instructions foundation has the dimensions 80x80x75 cm. That was me dimensioned too large. I poured a foundation in size 45x45x45 cm.
For my foundation I needed already 160 kg concrete (4 bags of 40 kg) !!!! Yes you can think how much would be required for the foundation of troubles ...

The included flag has the dimensions of 70x120 cm. This in turn was too small me. I recommend here the common size of 90x150 cm.

Finally, I added the blue cover painted black. Simply looks better.

I hope I can upload pictures so you get impressions.

Conclusion:
Had the joints better and closer and you would not have to rework this, it would have been a 5 star review.
But for this price, the offer is just great !!!