Closed wound-draining device under negative pressure. - Provides the option of using one or two catheters after surgery. - The connecting tube is kink resistant and has extra strength to resist suction. - Multi-perforated catheters with radiopaque line and smooth satin perforations/holes for trauma-free use. - Graduated bellows allows the user to measure drained volume. - Flexible bellows chamber can easily be pressed by one person to activate bellows suction. - Sterile, individually packaged in a cleanable blister pack. - Box 1 / Master Box according to size. UNIT CONTAINS: - Bellows volume 800 ml / 500 ml / 400 ml / 50 ml. - Connection tube with clamp and Y-connector. - Spare perforated catheter.