This generation of STP's has a sleek design for effortless packing, a tilted funnel in the cup for easier and less controlled urination, a new form to the cup that fits snug to your anatomy and the choice to either use the product with both hands or just one!
To urinate successfully with this STP you have two options:
The two handed option: Press the bottom of the cup (under the balls) lightly to yourself to create a seal. Then with your other hand open the urethra by gently pinching the head.
The one handed option: Take the triangular flap of silicone at the end of the prosthetic and tuck it into the crack of your buttocks. Make sure you feel a total seal of the cup before you start to urinate. Now you are free to use just one hand to control the urethra opening by gently squeezing the head of the prosthetic.
Note: to eliminate possibilities of back flow, always point prosthetic downwards so that the funnel can work properly.