As with most male masturbators, it has the same soft, sticky, somewhat orderous textured material. On use, the "stickiness" doesn't seem to go away, even with washing it a couple times before use. As per above, with the toy being a little short, I was surprised on how stretchy it was to accommodate me.
The shape is pretty typical, mimicking that of the female body in one way or another. This one happens to mimic a female anime character from behind, with the main focus being her anal area. I find the length of it to be somewhat short, and felt they could have lengthened it more even with it being super stretchy. The fit doesn't seem to be an issue, as it will stretch to accommodate most sized males.
Simply running the item under warm/hot water and applying a disinfectant like alcohol will help keep the product clean. You can apply some corn starch to help keep it feeling smooth. Make sure to keep it stored in its own storage container and keep it away from other toys to prevent issues with incompatible materials.
The Anime rimis tight butt mast comes in vary minimalist packaging. The box is the size of the item, and is wrapped in a clear plastic bag, which has some sort of powder in it to keep the item from sticking.