Drain, and 6" buildup, arrived quickly and in good condition. Everything I needed to add a cleanout to a long drain line with issues. Installation was very easy thanks to the cutouts on the sides. The connections went together easily, and my cleanout was installed in far less time than it took to dig the hole.
One set of 6 screws was included, loose in the box. A second set for the buildup was not. Easily found at the local HW store. Ideally both would have been provided in the box, and in an envelope or something. I almost lost a couple in the bottom of the box.
Not yet time tested, but looks like it will do the job well.