The single-tier Quik-Lok M-91 music keyboard stand gives you more knee room and lets you move your feet around with unrestricted abandon. Height-adjustable; computer-welded, lightweight steel. The keyboard stand folds and locks in seconds into a compact, transportable size. Limited lifetime warranty. More leg room Adjustable tier height Computer-welded, lightweight steel Folds and locks in seconds into a compact, transportable size Optional second tier set Limited lifetime warranty