Acupuncture - Vinco-Blister Acu Needle, 100/box, #32 x 3.0 inch : Vinco NT1 Blister Pack acupuncture needles are designed for maximum patient comfort. The lifted needle surface allows for easy insertion. The SkinSaver guide tube allows for more precise needle insertion. Blister Pack needles are individually packaged with color-coded tabs for easy identification.