... half chair, for ultrasonic scaler, high& low speed handpiece , contra-angle handpiece , three way syringe ,x-ray tube, intraoral camera, tray cover ... half chair, for ultrasonic scaler, high& low speed handpiece , contra-angle handpiece , three way syringe ,x-ray tube, intraoral camera, tray cover ... the life of dental units and stools Dental x-ray disposable shield, protective covers, dental material