Five function electric bed 1,Function: backrest & thighrest adjustment, HI-LO control, trendelenburg & reverse trendelenburg 1.Function: backrest & thighrest adjustment, whole bed HI-LO control2,High quality ... thrust,low noise,waterproof and dustproof.7,Central-controlling casters for easy operation and reliable fastening.8,Trendelenburg,reversr trendelenburg,in ...