solid cast iron basesteel tray with isolating foam stripsblack powder coating finish50 kg load capacity set of spikes included sp 3202the gravity gsp 3202 monitor speaker stand features a heavy triangular cast iron base and 25 x 25 cm steel tray with isolating foam rests. it is height-adjustable from 90 to 150 cm for optimum  tubing material: steeltubing colour: blacktubing surface: powder coatedmin. height: 900 mmmax. height: 1500 mmheight adjustment: yesbase type: 3-pointbase material: cast ironlower connector: m20tubing diameter: 42 mm/35 mmmax. load: 50 kgweight: 6.5 kgadditional information: including acoustic decoupling spikes