Accu-Fine insulin pen needles are precision-engineered for comfortable insulin delivery. These ultra-thin 0.25mm (31G) needles are 6mm in length and come in a box of 100 pieces, designed for use with standard insulin pens. These sterile needles feature a special coating for smooth insertion and thin walls for optimal insulin flow. The 6mm length is suitable for subcutaneous insulin delivery in most patients. Each needle comes with dual protective covers to maintain sterility until use. For safety and optimal results, needles should be used only once and properly disposed of after each injection.