The exterior cup is about 6" tall. It has an expansion area in the middle, where if you turn the top half counter-clockwise, it unscrews a small section to increase the total height to a little over 6 1/2". The large end of the cup (the top) is about 3" across. It tapers down to the bottom end, which is about 2" across.
The lids on each end can be removed. The top, large end is where the penis is inserted into the sleeve. The top of the soft sleeve is inside this lid. It's thickest in this area, and has a hole in the center to insert the penis into. In the picture, you can see a little of the inside texture.
The lid on the smaller bottom end can also be removed, and in the Fleshlight brand toys, the internal sleeve has an opening at the bottom, so removing the bottom lid causes there to be less suction in the sleeve, making a gentler pressure on the penis as it moves up and down inside the sleeve. With the Zpang, however, the bottom of the internal sleeve is closed, so removing the lid has no effect. There is a small pouch of JO lubricant that is included with the Zpang, and it comes stored inside this bottom lid (lubricant not pictured). The bottom of the soft sleeve is attached to a plastic hinge inside the bottom, and it cannot be removed. This is significant, as far as cleaning goes (see "Care and Maintenance," below).
My husband had some real problems with this toy. This was very surprising to me, because he is an open-minded man who loves sex and is always interested in anything that adds a little spice to our lovemaking. We have a Fleshlight, which he likes a lot, and another cheap alternative, the
Beauty Sleeve by Toy's Heart, which he likes also (I love this one because it's transparent and doesn't have a cup, and I find it very sexy to use it on him and be able to see his cock inside as he gets more aroused and as he cums). So he's not that picky about toys. The Zpang'S first problem is that the sleeve inside ends about 1" short of the bottom, making it only about 5 1/2" inches in length, and that is with the middle expansion area open. In contrast, the Fleshlight toys are MUCH larger on the exterior, and the one we have, the Tori Black model, has an internal sleeve that is 7 3/4" deep. Any man that has an average-length or above penis will have to be careful when thrusting into the Zpang so he doesn't hit the hard plastic end.
Also, the inside texture is quite extreme. There is a lot going on in there, and the sleeve material isn't as soft as a Fleshlight, and it was not at all realistic-feeling. My husband said it felt like way too much, to the point of discomfort. Here is the company's graphic showing the texture:
Even though it says "Easy Fit" on this model, according to my husband it fit very tightly around his penis. In fact, between the tightness and the extreme texture, it was very uncomfortable, if not painful, and he actually gave up after five minutes or so and, to my surprise, tossed the Zpang into the garbage!! His penis is of about average length, and is somewhat thicker than average, but when we talked about it afterward, he said he thinks that unless a man has a smaller-than-average (in length and girth) cock, or likes really tight toys with a lot of texture and not very deep penetration, this will not be a pleasurable toy.