Product review (1 stars): Stay away
Don't buy this, this is the same piece of junk that came with the dishwasher. It has nothing to do with how much you put in the top rack , it is just a terrible design.  Buy the part suggested in the review by S***sumom. It is made of metal. ( Now there's a brilliant idea!) You will need a special screwdriver. The directions are terrible but just google the part number on you tube and you will find better directions.