Model YOS-552-X  Electronic Table (without desk top) The features: 1.It is very smooth and quiet 2.The column set up at center position 3.Movements: Elevation Range: 660~860mm Maximum load: 50KG Net Weight: 24kg Voltage: AC 115/230 Frequency: 50/60Hz 4.CE Certificated 5.X style be supplied good space between user and wheelchair user. Note: we also supply off-center position type (model YOS-552-X-O) and please require.