Stacker. Optional stacker for 18950 or 18953 keyboard/stage piano stand, fully adjustable in height, tilt and depth to accomodate various types of instruments. All-metal construction. Big non-marring pads to protect the keyboard. Height: 290 mm. Support Depth: from 265 to 390 mm. Weight: 2.3 kg. Capacity: 30 kg. Colour: Black.