Bien-Air contra-angles: marvels of precision, offering reliability and quiet operation. The culmination of a long tradition of excellence, Bien-Air contra-angles boast a Soft Push push-button for easy bur release, three Accu-Spray separate air/water sprays guaranteeing perfect nebulization. Their ideal ergonomic characteristics ensure an excellent grip while guaranteeing perfect handling. The latest developments in Bien-Air contra-angles incorporate a new shaft and gear system mounted on pre-stressed ball bearings. This offers vibration-free transmission and reduces energy loss. These new Bien-Air shaft and gear systems simultaneously provide outstanding smoothness and improved sensitivity. For your comfort and that of your patient.