Controller for the Invacare Pronto M71 with SureStep (Used) (1106820) Golden Alero (GP50) Constructed with extra strong p aramid O15 2411 Constructed with extra strong p aramid cord reinforcement and engineered fiber loaded neoprene compounding this belt delivers the "muscle" and durability demanded by today’s high performance engines and the high performance enthusiasts who drive them With our power chair controller diagnostic service This is a gently used control module for older versions of the Invacare Pronto M71 that utilized the MKIV RII joystick and controller system After passing testing with flying colors while installed on a demonstration model Pronto M71 with SureStep