The College Tush is designed to be a male masturbator. Whether masturbating alone or with a partner the Senso material is a unique material & offers a much different feeling than human skin.
When your penis is erect you can enter her opening (with water based lube), to get off with.
The inside is ribbed, for your pleasure, and they have inserted a string of 9 beads for additional pleasure. The entrance is designed as an anus & the other end is also open, so it will not generate suction but it makes for easier clean up.

Senso material is very stretchy material as well as sticky when lube isn't applied. There is a slight odor to the toy, but only if you hold it to your nose, and after handling this tush your hands & penis will have that slight odor. The outside has 7 ridges to help with holding onto the toy during use, and the inside has small ridges to help get you off as well as a row of plastic beads.

The Senso material on the scale of 1-10 rates a material safety level of a 2. Very Low. Do not share without a condom as it can not be disinfected. Water based lube is needed, and lots of it is needed.

The hole is extremely tight & I'm not sure if placing it on a bowling pin would stretch it out. It is also short; 3.3 inches unstretched, so the whole penis, most likely, will not get stimulated at the same time. Sometimes it can be nice to slip it back on the head, but as it is so tight every time it goes over the head it feels as if the head of my penis is going to be ripped off.
The box top states "I'm Ohhhh So Tight!" They are not lying. See the picture of a Sharpie marker in the tush without lube. It did not fall out for over 2 minutes.
1st pic
2nd pic

If you have this toy & you actually use it, clean before and after each use using a toy cleaner or antibacterial soap. Storage should include a zip-lock bag as it will attract dust and dirt. Never share a Senso material toy as it can not be disinfected.

I haven't been able to comfortably use this toy as it is extremely tight. So tight I had to stop using it to get off. It is also only 4 inches long & yes it stretches but that only makes the already tight toy tighter. If college tush's were this tight no one would be getting anal sex while in college.

After a few attempts to use the toy I have decided it isn't a toy for me and will be looking for another soon.