I see no reason to assume that's an innertube and not a real doughnut. It lacks the smooth surface and seams you'd expect to see on a pool toy.

iridescent_slime said:

I see no reason to assume that's an innertube and not a real doughnut. It lacks the smooth surface and seams you'd expect to see on a pool toy.

that's an "actual" donut, made in blender. specifically looks like the one you're taught to make by Blender Guru
https://www.youtube.com/watch?v=TPrnSACiTJ4