Crafted from the finest Japanese surgical stainless steel within advanced manufacturing facilities, each step of the production process is rigorously controlled - from raw material inspections and surface polishing to needle sterilization and final production testing. The needle tips are meticulously sharpened and polished, ensuring uniformity, ultimate sharpness, and a painless, efficient acupuncture treatment experience. The Altra range offers various sizes and specifications, including options with and without loops, and with and without guide tubes, catering to the diverse needs of acupuncturists.