Stands hold a digital piano, synth or controller at playing height. Bespeco covers the folding X style options, the single braced KS12 with squeeze handle adjustment and the double braced KS22, which carries more weight. The Korg stands are model specific instead, such as the ST-SV1 made for the SV1. Match the stand to the weight of your instrument first, then to how often you pack it away, since an X style stand folds flat.