SEIRIN® Acupuncture Needles - 100/BoxSEIRIN® is the highest quality needle manufacturer from Japan, resulting in gentle, painless, and stress-free treatments. SEIRIN J-Type/D-Type needles features a lightweight, comfort grip, plastic handle that is color-coded for easy gauge identification. Made from only the highest quality surgical stainless steel, J-Type needles are synonymous with gentle, painless, and stress free acupuncture. The guide tube edges are rounded for the patient's comfort and the shaft of the needle body is centered on the handle to ensure accuracy during treatment. 100/pkg.J-Type has a guide tube. D-Type is without a guide tube.