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 andwithout loops, and with and without guide tubes, catering to the diverse needsof acupuncturists.