Product review (4 stars): GREAT PRODUCT BUT OVERPRICED.
This is the exact ice-tray I was looking to replace.
The fact that I would pay $14 dollars for one tray, tells you how much I like it.
It is also the only reason I won't give the product five stars.
Come on, Whirlpool; this product is overpriced.

Cubes are good size for smoothies---not quite 1" at largest edge.
They pop out easily.
Good design insures easy fill and transfer of tray.
They stack well and don't take a lot of room..
Mine lasted about 4 years before it cracked when I dropped tray straight from freezer.