25 gauge 1inch (0.5x25mm) needle 100pcs are separately sealed in tamper-evident box to ensure sterility. Needles cannula made from high quality stainless steel, Thin-walled design to maximize flow without changing outside diameter. Easy to push through a rubber stopper vial with tripple bevel cut and anti-coring heel. The needle hub is compatible with various types of injection syringe, both luer lock and luer slip. Multipurpose usage especially for laboratory experiment. Also useful in industrial field such as a precise dispensing auto injector or liquid drawing and refilling. Despite the product is inappropriate for professional medical purpose, still can be use for practicing and kit supplies. Each needle comes with a protective cap for safety handling, however please keep away from children reach and discard in a proper container after use.