This round granite base is suitable for parasols with a pole diameter of 38-48mm.It is manufactured with a stainless steel tube plus 2 locking bolts with plastic caps which will tighten and hold pole securely in place.It is suitable for use with stand alone parasols up to 1.5m or in conjunction with a table.Approx Size: Ø42 x H34.5cmApprox Tube Size: Ø5.7 x 30cmDepth of base 42mm Features: This round granite base is suitable for parasols with a pole diameter of 38-48mm It is manufactured with a stainless steel tube plus 2 locking bolts with plastic caps which will tighten and hold pole securely in place It is suitable for use with stand alone parasols up to 1.5m or in conjunction with a table Specifications: Dimensions: H:35.0 x W:30.0 x D:4.0 cm Colour: Grey Guarantee:12Month Faulty Guarantee Material: Granite Model Number: BB-UB115