This is the second one of these that we ordered. The product is different than the photos on the box and online. There is a major flaw in the design for the one that is shipped. I thought it was a fluke for the first one so I ordered a second once the first one failed. Not the case. Both have the same design issue. 

Essentially, the design is backwards causing the point of contact to wear out over time. Would not recommend this one.