Key Information: ‣ Size: 5mm ‣ Uses: BD Microfine Plus Pen Needle provides comfortable and accurate insulin administration for patients using insulin pens ‣ Directions: Attach the needle to the insulin pen, inject the prescribed insulin, and dispose of after use ‣ Warnings & Precautions: For single use only. Dispose of used needles in a proper sharps container. Keep out of reach of children