The syringes are manufactured using high clarity barrel made from medical grade polypropylene and have exact long-lasting graduation marks printed on the barrel. Its latex-free piston is lubricated with medical-grade silicone for a smooth draw, and the internal ring in the barrel acts as a lock to ensure the plunger does not displace during the draw. All syringes are sterilized by ETO and its sterility is guaranteed. The syringes are available with and without needle options.