Twist and pull the lancing device cap 2. Insert the lancet into the lancet holder and press firmly until it is secure 3.Twist the protective disk of the lancet to remove it 4. Holding the cap, select the penetration depth by turning the adjustable tip in either direction until the arrow points to the desired depth point 6. Pull the slider until you hear a click. You will see the inside of the release button change colour when ready.