Micro Needles 31G X 4mm(100ea)The Korea Best Needles Manufacturer Product! The integration of craftsmanship and technology has created this ultra thin needle to lessen patient discomfort during needling and to minimize hemorrhage and swelling. Pain and bleeding are successfully reduced during needling by an ultra thin walled needle which lessens friction resistances by a special process of Micron Sharpness. It makes it possible to inject high viscosity solutions with extra fine