adjustable beach or sun umbrella stand 1.metal material for fixing well 2.surface spray paint, protectand more beautiful adjustable beach or sun umbrella stand usage--for sun umbrella, beach umbrella etc.__the diameter can be used about 40mm features:——it can be adjusted 360 °, based on the sun ,when it 7:00 in the morning ,you can adjust the umbrella by the base stand at 7:00 direction, if it is ...