ABOUT SMARTFOOT : 
 
SMARTFoot Originals offers solutions as to how an umbrella can be mounted on a balcony especially if there is limited space. 
The answer:
Use the balcony rails to hold the umbrella. With its simple clamping system, umbrellas can be put up and taken down quickly, whether you have flat or round rails. 
 
PLEASE NOTE THIS LISTING VARIATION- PLEASE CHOOSE FLAT OR ROUND RAILS.
 
They will accommodate umbrella poles up to 38mm in diameter. The backplate of the model for flat rails is a generous 19cm wide and for round rails it is 9cm wide, and should fit most relevant situations.
The SMARTFoot range offers the opportunity to mount an umbrella on your balcony simply and quickly, without taking up valuable floor space. There is a SMARTFoot model suitable for use with either round or flat rectangular railings. Once the umbrella holder is attached to the railing, it can remain in situ. It is then an easy task to insert the umbrella pole and clamp in place. When no longer in use, the umbrella can then either be folded down or taken inside