High Rize Pistol Grip & Pressure Gauge Pump– Made with medical grade silicone and ABS plastic, the High Rize Pistol Grip Pump encourages longer and stronger erections and permanent penis enlargement. The Pistol Grip Pump comes with a gauge for a accurate pressure readings and a measuring scale so you can see the pump in action. For quick and instant release there is safety valve to release pressure instantly! Water-based lubricant recommended.