HEAVY FRAME: Plastic casing with cement filling and weighing 20kg, it keeps your sun umbrella upright.FITS OUTSUNNY PARASOLS: Houses pole diameters sized at 32mm, 38mm and 48mm. Note: Please measure your umbrella pole in advance to ensure our base can fit well.ADJUSTABLE POLE: With a screw fastening, it allows you to keep your parasol firmly in place to prevent it moving about all day long.TWO-SQUARE DESIGN: A unique look which places a shallow curved square on the bottom base and moulded into each other - a subtly stand-out design which works well in all gardens.DIMENSIONS: 33H x 41.5Lx41.5Wcm. EASY TO ASSEMBLE.