Model XA Adjustable Push Button Activated Safety Lancet is a sterile (Needle Tip Sterility) single-use medical device intended for capillary blood sampling and is composed of a protective cap, a knob (for depth settings), a front spring, housing, needle body with tri-bevel edge needle, a rear spring and a back cover (push button). The needle body with needle or blade is hidden inside the housing/protective cap. The device is colour coded for different versions.