NovoFine pen needles are precision-engineered medical devices designed for insulin injection pens. Each box contains 100 sterile needles measuring 31G x 6mm, providing reliable and consistent delivery of medication with minimal discomfort. These needles are compatible with most insulin delivery pen devices. The 31G ultra-thin needle wall technology helps reduce injection force and potential tissue trauma. The 6mm length is suitable for subcutaneous injections. Single use only. Store in a clean, dry place at room temperature. Proper disposal in sharps container required after use.