This is a typical penis pump with a silicone sleeve that fits inside for added sensation and comfort, as well as a narrower pumping chamber.

It works best when the penis is lubed and flaccid. There are guides available with instructions on how to use pumps like this one to achieve given results. However, this particular item does not come with instructions of any kind beyond the packaging's listing of features.

Pumps like this can be used to achieve erection quickly and easily. There are also regimens which claim to enhance a man's erections over time, such as making them harder, longer, thicker, or last longer. This would be similar to the benefits seen from Jelq type exercises.

The inside of the pump is lined with a silicone sleeve with raised bumps 3/8" across and 1/8" in 9 rows of 8 rings. This sleeve is removable, and I found it to be easier and more comfortable to use the pump without it. A nice advantage to using the sleeve, however, is that the removable sleeve is easier to clean than using the pump without the sleeve.

The outside of the pump is clear, hard plastic.

The bulb is textured on the outside to be easier to grip, although I don't see much added value in it.

From bottom edge to top rim it is 7 + 7/16" deep, and from bottom to tip it is 7 + 5/8" deep, and it is 2 + 1/16" in diameter without the silicone sleeve, 1 + 7/8" in diameter with the silicone sleeve.

The overall appearance of the pump is not discreet or suitable for travel, although its size might make it easy enough to hide.

I am slightly above average in both length and thickness, and I had trouble fitting in the pump the first time I tried. I found I needed to be either completely flaccid or fully erect to get inside. Once in, no matter how much I pumped, I was stuck at the bottom of the sleeve because of friction: I needed lubricant. The sleeve is silicone, so either water-based or oil-based works fine, but silicone lube would dissolve the sleeve. Once I got the pump to work, the head of my cock reaches the end of the tube. Any man longer than 7 + 1/2 inches will need a bigger pump than this one, and there are many available.

Once I figured out how to get the pump to work for me, it performed marvelously, both with the sleeve and without. It was able to give me a full erection in under a minute, which I was able to maintain just as well as one achieved without it.

The silicone sleeve is removable, although it is much more difficult to put back in. Once removed, it can be turned inside out (with some difficulty) and washed with soap and water to remove the residue of lubricant. If used without the sleeve, any lubricant residue is difficult to wash away from the inside of the hard plastic tube, although a bottle brush would probably help.

As stated before, the sleeve is made of silicone which is incompatible with silicone-based lubricants, although water and oil-based lubes are fine.

The packaging is bulky and somewhat discreet (there are no pictures of naked men on it), and it could potentially be used as a storage case for it. There were no instructions, and only a small paragraph of fine print warnings against prolonged or frequent use.

I am somewhat above average in both length and thickness, and I had trouble fitting in the pump the first time I tried. I found I needed to be either completely flaccid or fully erect to get inside. Once in, no matter how much I pumped, I was stuck at the bottom of the sleeve because of friction: I needed lubricant. The sleeve is silicone, so either water-based or oil-based works fine, but silicone lube would dissolve the sleeve. Once I got the pump to work, the head of my cock reaches the end of the tube. Any man longer than 7 + 1/2 inches will need a bigger pump than this one, and there are many available.

Once I figured out how to get the pump to work for me, it performed marvelously, both with the sleeve and without. It was able to give me a full erection in under a minute, which I was able to maintain just as well as one achieved without it.