Clamp for securing a garden umbrella. With the clamp, you can easily attach the umbrella to a tabletop, railing, balustrade, etc. It can be mounted both vertically and horizontally. Attachment range: up to 38 mm (diameter of the umbrella pole), up to 60 mm (thickness of the tabletop), up to 70 mm (diameter of the railing). Made from durable and robust materials. Weatherproof. Metal in anthracite with an adjustable wing screw and a large knob for size adjustment. Tube 155, diameter 54 mm with adapter ring max 38 mm pole.