Works exactly as I expected at a good price. It's pretty durable too as there were no broken pieces during shipping and when I accidentally bumped it into my metal aquarium stand, it took off some paint from the stand and the ceramic bar was just fine. These also stack real nicely so it's a really efficient use of space. I combine it with a sponge filter to make an effective, low-flow, in-tank filter for my discus fry.