I purchased the SiliconeZone Set of Two Ice Trays (Green)Product Advertised Features:Quick and Even Cooling - Should say Very Slow and Uneven CoolingFlexible - Should say so flexible you will have difficulty gettin a filled tray into the freezer without spilling water everywhere.Easy Removal of Ice - Should say you have to use your finger to push out each piece of ice. Twisting does not free up and remove the ice.If you want a real challenge making ice then this is the ideal product for you!