Features of the BD Syringe with Luer-Lok Tip: BD syringes feature a clear barrel with bold scale markings, tapered plunger rod for ease of aspiration, positive plunger rod stop, and an added BD Luer-Lok thread for increased secure connection. Packaging is clearly labeled latex free. Graduation - 1 mL , 2 oz in 1/4 oz. Sterile. The product referenced on this detail page is sold be 40/bx.