Sharp cutting cannula edge assures an intact 1 or 2 cm core tissue sample and the two notch sizes-10 or 20 mm-provide controlled, precise sampling for a variety of procedural situations. Echogenic markings on cannula allow for precise ultrasound placement and centimetre depth markings assist in needle placement. Patent-pending, four-bevel tip is significantly sharper for quick, easy penetration. Needle tip tracks straighter, eliminating unwanted distal drift or deflection. The shorter needle tip minimizes the risk of perforating surrounding organs and vessels.