The original Jamshidi needle offers features that have made this bone marrow biopsy/aspiration needle a best seller for decades. The needles are available in a wide variety of sizes to meet user preference. The tapered distal tip of our disposable Jamshidi? bone marrow needles is designed for successful specimen collection. The razor-sharp bevel tip allows easy coring of the bone. Their lightweight handle with built-in comfort knob enables the practitioner to apply sufficient pressure without discomfort. All needles are packaged with an adapter to accommodate Luer lock syringes. 10 needles per case.