A11-B1-C6-D6-E60-BTC-E1C 

*double pistol grip handle (A11)

*solid microcellular foam no-flat wheel also non-marking (D6) 

*paddle brake  (BTC)

*extruded aluminum nose plate 18" x 9"  (C6)

*straight back frame with 60” extension  (B1 and E60)

*cast aluminum stair climbers (E1C)