The umbrella seemed very sturdy but was difficult to put the two curved pieces of pipe together (too tight of a fit).  I followed the directions but they were very vague.  Once I manhandled it together, the crank would not wind or unwind.  Since the two pipe fittings were stuck together, I had make an attempt to fish the rope out of the two small holes that allowed the pop out lock to work.  Now it cranks (not easily) and one of the pop out buttons fell into the depths of the pipe.  Not sure if the rope  in the pipe is damaged from being pinch by the pop out mechanism or by the two pipes fitting together.  3 hours of my life I'll never get back!