Slow, 70° reciprocating or oscillating contra-angle for prophylaxis, stainless steel, 8:1 reduction. Maximum operating speed 20,000 rpm. Attachment for snap-on and screw-on cups and brushes. Sealed to prevent paste penetration. Autoclavable at 135°C. Can be connected to all INTRAmatic motors and motors with a connector according to ISO 3964. (SMARTmatic Prophy S33 third from the left)