Five advantage： 1.Plastic material，healthy easy to clean，use the rest assured 2.Rebound design，to achieve a number of needle 3.Minimally invasive pain，needle speed, reduce pain 4.Depth adjustable，5 file depth can be adjusted 5.A key to the needle，A key to easily cut the needle，Easy and convenient，Environmental guards Precautions for use of the product： 1.One person, one pen：Blood pen is only for personal use, not many people share 2.Disposable lancet：In order to avoid infection,be sure to use the new blood collection needle every time 3.Timely disinfection：Wipe the pen and cap with alcohol 4.Properly dispose of the needle：Carefully handle used needles to avoid harming others. Use of blood collection needle： Step 1：Remove the blood pen ,disinfection: Remove the blood pen ,the pen of the blood pen for disinfection,because the blood pen is a direct contact with the blood. Step 2: Remove the disposable lancet: Remove the disposable lancet ready to install. Step 3: Install disposable lancets:Insert the disposable lancet into the inner core of the lancet and unscrew the protective cap of the lancet. Step 4: Install the blood colection pen, Slightly adjustable depth:Screw on the blood cap,according to the thickness of the human skin slightly adjust the nut,transferred to the appropriate location of the depth. Step 5:Blood collection by blood collection:Take the blood when the pen was vertical alignment of the fingers,gently press the blood button. ​Remarks:only send lancing pen, no lancets needles.