This isnt just any parasol its a sunshade that is made of materials especially designed to offer unique protection against ultraviolet rays both uvb and uva features it has a protection factor of 50 the highest factor that material can reach upf 50 large size 70 cm diameter universal clamp with inserts to accommodate different thicknesses of chassis includes an extension simple quick release button mechanism to remove the parasol and leave the clamp installed button to adjust the s