Hello and thanks for viewing my ad. > Active ad = available. > The 2nd tier only works with the Z stand in this listing. So they are a set. You can remove the top tier of course if not in use at all times. > Specify a date and estimated arrival time for pickup from Somerville 02145 or reply to this when ready to head over. CONDITION Like new condition. Spare unused unit. Disassembled and shrink wrapped. Include all parts, wheels and manual. No box. DESCRIPTION The listing is for a heavy duty 2 tier keyboard stand with an optional 2nd tier attachment for a second keyboard instrument allowing for space saving positioning of keyboard inside recording studios or during live performances on stage. Disassembly is a breeze for space spacing transportation. Include option for both wheeled (included) or stationary use. Sleek Z shape design. FEATURE FOR THE BOTTOM Z STYLE STAND 250 LBS WEIGHT SUPPORT Offers support for piano setups as well as 88 key keyboards. Easy height and length adjustable via knobs. Anti-slip grip pads. PORTABLE WITH EASY ASSEMBLY | DISASSEMBLY FOR TRANSPORT Lightweight and easy to move around in studio, at home, or to live performances and concerts of any kind. It includes four detachable locking wheels and four adjustable feet. Take the wheels off or lock them in place to keep it sturdy. FEATURES FOR THE OPTIONAL 2nd TIER ATTACHES IN SECONDS: Easily mount this right onto your Z style Knox Gear piano stand with a simple tightening of the knobs. (Not compatible with other keyboard stands) ADJUSTABLE Height and width adjustment to allow customization for the keyboard in use. Alter the positioning of the stand by releasing and tightening the side knobs. Easily mount to the Z style keyboard with a simple tightening of the knobs PORTABLE Lightweight and collapsible for easy transport for moving or events STURDY Strong metal material allows it to withstand heavy keyboards without bending or breaking – securely straps onto your keyboard stand with ease