I have not used it, but because it does not suit my use, I made it "dissatisfied." We ordered things with a thickness of 17 mm, and the items we delivered are merchandised items just by stacking two 8 - 9 mm thick objects. I think that it is necessary to mention that if "two piles". Although it is a competitor's product but selling it in Monotaro, it is a kind of responsibility ... sorry! Although not related to the above, I am looking for products with "no axis".