Medivena One-Care Pen Needles. MediVena ONE-CARE Pen Needles offer extra-thin wall technology for smooth insulin flow, fast and virtually pain free injection. ONE-CARE Insulin Pen Needles are precisely grounded with three-bevel tip, electro-polished and coated with medical grade lubricant to minimize injection force and improve patientâ€™s comfort to encourage glucose testing and insulin delivery for compliance with diabetes management recommendations. Ergonomic design with ribbed housing ensures comfortable grip for secure attachment onto the pen injector. Package includes: 100 non-toxic, pyrogen-free pen needles, ETO-sterilized, protected with outer cover and easy peel-off tab.