Product review (5 stars): It's a washing machine leg
This was a gift & there is no apparent way to get rid of it in my reviews. So here ya are.

This is a washing machine leveling leg. It levels the washing machines that it fits. It fits my son's washing machine. His washing machine won't wobble with it. Highly recommended to use this under a washing machine instead of on top. Can also be used as a piece in an avante-garde chess set.