Model YOS-552 Electronic Table without desk top The features: A. It is very smooth and quiet B. The column is set up at center position C. Movements: Elevation Range: 720~920mm Maximum Load: 50KG Net Weight: 20KG Voltage: AC 115V 60Hz, AC230V 50Hz D. CE Certificated E. YOS-552 is used by UL/CSA/CE safety approved element F. Based Dimension W: 770mm x D450mm The based could be matched wheelchairs in 650mm W and 230.5mm D. NOTE: Offer custom desk top size. The desk top is not included to offer with YOS Series. Must be to extra order