Smooth : the practical dispensing needle has undergone internal and external polishing and ultrasonic cleaning for more than 3 times to burrs, and not damage your hands Package Contains: you receive 10 pieces dispensing needles; Note: this set is blunt tip, only can be applied for industry, can not be applied for human injection Leak-proof design: the quality buckle design of the dispensing needle can the sealing of the needle during use, and it is not easy to leak, which improve your work efficiency Quality materials: the bottom of the blunt-tip dispensing needle is made of quality brass and -plated material; The stainless steel needle tube is , which effectively extends the life of the needle and you for a long time Precise connection: the blunt-tip dispensing needle is controlled by a precise jig to the between the needle tube and the connection part of the needle seat, and it is not easy to fall off