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I don't know why this toy has been discontinued, because they're pretty handy. Alan picked up a second one shortly after we reviewed it, and we keep them in the freezer all the time. Not just for temperature play, but because it's really convenient to grab one to soothe a minor burn when cooking projects fight back. The only negative thing I can say about them is that the clear silicone has discolored here and there, like old Tupperware sometimes does. I don't know if that's because we keep them in the freezer all the time or if that's what food grade silicone does when it ages, but it doesn't smell or anything so we're not too worried about it.

~Michele