Charles Bentley 9kg Metal Square Patio Base Stand - Black This square metal umbrella base is ideal for use with most umbrellas and would be suitable in any size garden. It has a tightening screw on the side to ensure the umbrella is secured inside the base. Black finish Tightening screw on the side, Complete with inner collar which allows the base to fit two different sizes of parasol Dimensions: w35 x l35 x h31cm, hole dia. 38mm (with plastic collar), 48mm (without plastic collar) Weight: 9kg Colour: Black Self assembly required