Made of high quality stainless steel with large ID and high flow Semi-transparent needle-hub for the convenient observation of blood reflux Delicately-designed needle-point with features of sharpness, smooth puncture, less damage to the tissue, less painful feeling to the patient Size distinguished by the needle-hub & primes color for the clear recognition The flexible supply form: in bulk or pack, sterilized or unsterilized Production of all kinds of special needles required by our customers Packing types: in bulk or in blister