A11- double-grip flared handle with short U-extension

B1- straight back standard frame

C6- solid aluminum nose plate 18"W x 9"D

D5- wheel, 4-ply pneumatic tire on 3 piece bolt-together wheel with precicion bearing

E60- 60" frame extension

BTT- rod tread brake system

E1E- ergonomic extruded aluminum stair climbers

E47E- self-retracting pull bar for E1EB stair climbers

E46E- 5/8" kick bar