Product review (5 stars): Very sturdy and well built
I was very pleased with the quality and fit of this basket.  I was a little worried that it wouldn't fit my old Maytag dishwasher (being as how this is a Whirlpool part), but this is the part number that came up.

Anyway, it fit perfectly.  The plastic is a little flexible and fairly tough so I don't think the big cooking knives will push through the bottom.

Overall, it's a well made item that fit perfect.