The Jenifer cantilever (side arm) parasol with crank handle opening and closing mechanism. It has a 2-way canopy tilt function with slide control. It can be rotated 360 degrees with a foot pedal lock. It is supplied with a powder-coated anthracite-colored aluminum frame with an " x " base plate ready for heavy slabs to be placed on top. There is an optional Jenifer plastic freestanding water-fillable base unit that is available to purchase separately (shown in the photo). This is not included! The base is an additional product and must be purchased separately. It is filled with water or sand. The parasol comes with an x-leg. You can buy slabs from a builder merchant or DIY store. The amount of weight you need depends on the wind where you are going to use it. Windier = more weight.