BD Micro-Fine Plus Pen Needles are high-quality insulin pen needles designed for diabetes care. Each box contains 100 sterile needles measuring 0.23mm (32G) x 4mm, providing a precise and comfortable injection experience for insulin pen users. These pen needles are compatible with most insulin delivery pens. The 32G (0.23mm) ultra-fine gauge and 4mm length are designed to help minimize injection discomfort while ensuring proper insulin delivery. Each needle is sterile and intended for single use only. As this is a medical device for diabetes care, please consult your healthcare provider for proper usage instructions.