Well, I will start off by saying, I have a Vac-U-Lock dong and, not realizing from the reviews, it was for a harness. But of course, I made the very best out of both! The suction cup is made of rubber, but it is more like a plastic; it is a bit harder than you would think, like a rubber dildo. It is a great material and it is easy to clean.

You can use water or a silicone lubricants. It can have a bad or a good suction depending on where or what you stick it to! One night, I got real desperate for doggy style, so I used my nice, big, horny imagination. I cleaned my toilet, and stuck that sucker right to the rim of the porcelain. And I rode it to town, it was great, and if you add a vibe toy to it, it’s even better! But it didn't work at first; I didn't know that I had to put some water on it for a tight sucking.

Now, I tried to stick it to the fridge and, yeah, the metal on the fridge did not let it stick at all. This suction cup is also good to use for a nice hand grip. I know that it sucks when your arms are just not long enough. It is a lot easier to be able it reach down and grab the round part of the cup. Believe me, this suction cup is a great product to buy, especially along with the Vac-U-Lock dong. That comes in six and eight inch lengths, and the suction cup will work for both. Easy to clean, and sticks almost everywhere. The next spot I’m going to try and stick it will be my husband’s forehead! Lick it and stick it!