{HEAD ~ The slide bars} are configured in a triangular arrangement and are supported within the housing by a combination of linear ball bearings and {TAIL ~ a plastic bushing} 
{ HEAD ~ The slide bars } are configured in a triangular arrangement and are supported within the housing by a combination of linear ball bearings and { TAIL ~ a plastic bushing }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL