Unifine Pentips Standard Insulin Pen Needle 31 Gauge 6 mm Length NonSafety - 100 Count BoxStandard Insulin Pen Needle Unifine Pentips 31 Gauge 6 mm Length NonSafety Unifine Pentips are designed to deliver less discomfort, during an injection, with a precision sharpened needle tips designed to reduce penetration force Thin wall technology improves drug flow, aiding less thumb force and time to deliver the dose, reducing thumb fatigue Anti coring treatment, at the rear of the needle, provides for clean piercing of the drug cartridge with no