Review on Create Idea Isolation Partition Tansparent by Fred Boals

They are actually very durable considering the price. Glass mounts come with good suction cups. I used them to create a barrier between the filter inlet and the rest of the tank as this is a brood rearing tank. Note that the holes are big enough for very small fish to swim through. If you are using this to create a baffle effect or otherwise create a baffle in an aquarium and you have juvenile fish or very small fish they can swim through the holes. The biggest problem is that there are triangular grooves and triangular notches on the edges. They were created to connect with each other. The problem is that these notches don't fit into the grooves. They will need to be filed or sanded to fit. Don't try to match them, you'll just break the notches. Apart from this issue, I am very happy with this product.