It is a stroller umbrella with a maximum diameter of 60 cm. It is not enough for carefree shading but requires constant adjustments as you go down the road and change directions/orientation, etc. However, if it were larger, it might not fit on the sidewalks of Athens with trees/bushes and cars. It does its job, but it just needs a little adjustment on the go. It seems sturdy and has 2 joints that do not help much.