Dedicated design to be congruent with A300 speaker. Recommended to be used exclusively with A300 to improve sound quality. The ST300 stands are made with 100% natural MDF material. Thickness of bottom plate is 30mm and top plate is 21mm. Weighing 18.8 Kg a pair, these stands are heavy and steady. Designed to be an visual extension of the A300, color finish and shape on front part of the stand columns is the same as front baffle of the speaker. Side panels on stand column also use consistent wood grain finish to match the speaker. The ST200 weights 15 Kg(33.2 Pounds) a pair and will provide sufficient support and rigidity without filling. However, for those with extremely discriminating ears and who pursue perfection, the column can be filled with sand (please use dry sand) for maximum stability. The ST200 weights 15 Kg (33.2 Pounds) a pair and will provide sufficient support and rigidity without filling. However, for those with extremely discriminating ears and who pursue perfection, the column can be filled with sand (please use dry sand) for maximum stability. The pedestal base pad is detachable, then installed the metal food (metal foot are not included in the product) to make it more suitable for carpeted floor. The ST300 stands is 660mm high. With tweeter location of 303mm on A300 speaker, tweeter height will be set on 965mm from the floor, which is the standard optimal height for listening. Product Dimensions (Assembled): W320xH660xD400mm /12.6x26x15.8inch Weight: 18.8 Kg / 41.4 Pounds