Unistik 3 is pre set and ready for use. Just twist off the protective sterile cap and take the sample. The needle point is hidden before use and automatically retracts after use to avoid accidental needlestick injuries and cross infection. It features unique Comfort Zone Technology that allows ultimate control and comfort when lancing. Comfort Zone Technology increases comfort when lancing by targeting the sensation and perception of pain. This masks the pain of lancing to maximize comfort.