Its not really noticeable unless you are looking for them. I like the screws they seem really strong. Very disappointed in the difference between experiences. Perfect gift! This turned out perfect! it is easy to understand as it is in textbook form and is by far the most valuable book I own. I wear a size 11 and could only find these in a 10, and they fit wonderfully, the only issue is that i have pretty big feet so width wise these were a tiny bit tight. So thats $67 over two pairs down the drain. These slides are very comfortable. I would suggest using power tools to tighten up every screw - do that and it will feel nice and secure.