Cal Exotics Advanced Master Gauge Pump has superior suction! It does this by sealing the chamber around the penis and then creating a vacuum to pull blood into the penis, which creates an erection. A cock ring will help hold the blood in the penis and helps maintain the erection. The Cal Exotics Advanced does its job very well! There is a quick release valve, which is a very necessary feature.

Material/Texture: The cylinder is made from plastic and the doughnut is silicone. The air hose is flexible silicone. The masturbator is made of smooth TPR.

The exterior of the cylinder is smooth, transparent plastic, which is common with pumps, so that you can see what's going on inside while you are using it. It does become slick if your hands are covered with lube, so having something available to wipe your hands off is a good idea.

Safety Features: Food-grade material, hypo-allergenic, latex free, non-porous, and phthalates free.

Shape/Design/Size/Fit: This is a normal sized pump for the normal sized man. If you are close to average, then you should be able to use this pump without issue. The measurement lines are useful in helping you determine the length (and girth) that you are achieving.

Fits penis girth up to: 2 1/2"
Weight: 1 lb
Cylinder Length: over 9"
Diameter: 2 1/2"
Inner diameter: 2 1/2"
Masturbator Length: 5 1/4"
Circumference: 6"
Inner diameter: 1 3/4"

Care and Maintenance: Easy to clean up with soap and water since there are no electric parts to worry about.
Easy removable silicone doughnut.

Packaging: The Advanced Master Gauge Pump comes wrapped in thick plastic. The hand pump is wrapped separately. They are both in a box that has a large picture of the pump on the front, and has smaller pictures on the sides. The back of the box has info of the Cal Exotics Advanced Master Gauge Pump.

Since I had my boyfriend use the Cal Exotics Advanced Master Gauge Pump, I will give you his experiences with it. As far as growth, there wasn't any. He enjoyed the suction it has in helping him to get a hard on. He placed a cock ring after to maintain it. All in all he loves that it can be used with one hand and has the quick release so he doesn't lose his erection and we can enjoy the night/day!

The Advanced Master Gauge Pump is a nice plus to get the evening started! I think that they need to have some kind of sleeve to cover the penis, instead of just placing it inside the cylinder. I’m so glad it does have the quick release valve. I controlled the pump while he was using it and got a bit carried away with . . . oops, I just got so excited watching and knowing I had control of him getting hard.