As a hesitant buyer in the Industrial and Scientific category, I found the Schioppa GLEFD 512 NTE Non Marking caster to be an exceptional product for material handling. The all-metal construction provided a sturdy and durable feel, which I appreciated. As a result of using this product, I found that it rolled smoothly and quietly, and was able to easily navigate sharp corners and rough surfaces. Although it comes at a slightly higher price point than competitors, the quality and performance more than make up for it.