Suitable for parasol poles with a diameter of 4 cm. The applicable railing width is 4-7cm. This parasol base is super supportive and can replace a parasol base weighing 50-70 kg. Stability, stability and safety for small umbrellas - Anti-shake and anti-shake, strong handle, aluminum housing high quality steel and iron alloy with gasket and sensitive nut. Ideal for small balconies: the balcony railing parasol holder replaces a heavy and bulky parasol base, which takes up a lot of place. With a small parasol on the balcony, your outdoor area becomes a shady oasis of well-being. High-quality materials: the balcony stand is resistant to sunlight and bad weather conditions. Saves the installation of the handrail and the parasol bar. Optimum shading of the balcony: thanks to the attachment to the balustrade, you can easily direct your parasol in the changing sunlight throughout the day, and thus have sun protection and shade at any time of the day. The parasol holder can be mounted on many