It's very hard for me to tell you the best way to use this toy. First off, apply lots and lots of (water-based) lubricant on your penis and on the rim of the stroker. It is handheld and requires one hand to hold the pump and the other to hold and stabilize the machine. It is easiest to use when sitting down. Standing up or laying down will be difficult and less pleasurable. It stimulates your cock and will "work" on anyone that has a penis that will fit into the pump. The best time to use this is when you are alone at home and nowhere else.

The Black Jack is made of TPR-silicone and ABS plastic. I could detect an odor coming from the toy when I opened it that smelled a lot like plastic. The sleeve is silicone with bumps and a mouth-like opening, while the casing, controls and handle are plastic. The suction bulb seems to be some sort of rubbery plastic. The silicone is not very soft and not accommodating at all for me. Along with the lips clamped onto my dick, the bumps in the sleeve didn't do too much for me. They basically were just digging into my penis instead of massaging it.

The weight of this toy is fairly heavy compared to similar toys. It is stated that it weights 1.5 lbs and is very bulky. It is 7" in length. I highly reccomend you use this only in your bedroom where you know you have privacy. It is very loud, so make sure no one is in the room next to you. It is very difficult to take with you on trips due to it's large size.

The fit for me was terrible and I am of average size. After applying plenty of lube, I had a lot of trouble trying to fit my penis inside.

After going inside, it was very (uncomfortably) tight. I could barely slide my dick out of it and was worried I wouldn't be able to get it out. When I turned on the stroker, I felt like it was locked onto my penis, yanking it back and forth. After using it, it took some time and some more lubricant to pull my dick out of the machine.

The inside of the pump has a bumpy texture that did not help my experience at all.

I give this products pump a D-. Not because of its lack of suction, but because it sucks onto you way too much; almost to the point where you could cause possible damage to the nerves inside your penis.

I could not tell you the proper way of cleaning this. I couldn't figure out how to remove the sleeve from the inside, so you cannot just run it under soap and water. I had washed it carefully with a moist paper towel. After trying to wash it and the struggle and mild pain I had gone through when using this, I eventually scrapped it.

This device required way too much lubricant and was extremely tight on my penis. It was the most unbearable feeling my penis has ever encountered. The cleaning was ridiculous. The sleeve inside could not be taken out and therefore made it extremely difficult to clean. It's battery operated and therefore you cannot run the thing underwater. After cleaning, I was contemplating on whether or not it was worth keeping, and not too long after that I threw it away.