Hand Control Pendant for the Merits B211 Semi Electric Bed Viro Rides Vega 2 in 1 There is a center hole Weight:6.5 grams There is a center hole in the clutch area and it may be used on go karts with automatic and automatic with reverse gear It is only compatible with certain Pride Mobility lift chairs manufactured prior to serial number LD513911042F20 for the GL358XL and LD613911039F20 for the GL358XXL lift chairs This 6 button hand control pendant for the Merits B211 Semi Electric bed is unique to the B211 model (made in 2010 and after) and Merits did not use it on any other model Do you also need a replacement motor as well