As a lowly citizen who works in Industrial and Scientific industry I decided to give this caster yoke a try.As a result of my tests, i determined that it is a total disaster. The yoke ruined my machine and made it unusable. The only pro of this product is that it came in a nice packaging. The major con is that it doesn't work, and it's a complete waste of money. Don't buy this product if you want your machine to work properly..