The Top Gauge Professional Pressurized Pump is made with an industrial grade pressure gauge to monitor your action. Everyone needs a boost once in a while, but maybe you just love the feel of that intense suction thrilling and draining you as you control the amount of pressure. Pump up your action as you watch through the frosted transparent. Your thrills will increase when you watch yourself grow harder as you work the one handed pistol grip. Make this part of your foreplay or keep the pump your secret pleasure. The inside sleeve is a soft latex for an airtight seal. You can use your Top Gauge Pump with or without the latex sleeve. There is a flared rim at the base of the cylinder to give a better fit and more comfort. The cylinder is 7.5 inches long and is slightly tapered to give a better fit. This unit is an excellent addition to your sexual arsenal.