Pivoting-shield needle with single finger stroke activation - no hard surface required.Attachment BD Eclipse™ Needles For Luer Lock Syringes - Firmly attach the needle to the Luer Lock syringe with a firm push and a clockwise twist. BD Eclipse™ Needles With SmartSlip™ Technology for Luer Slip Syringes - Attach the needle that features SmartSlip™ Technologyby pushing onto the Luer Slip syringe firmly until an audible click is heard.Aspiration Draw up medication in accordance with established protocol.Injection Administer injection according to protocol. For user convenience, the needle "bevel-up" position isoriented to safety cover.Activation Immediately following injection, activate safety cover by centering thumb or forefinger (of hand holding syringe) on finger pad area of safetycover, then pushing cover forward until you hear/feel it lock. Visually confirm that the needle tip is covered.