Clair, I had to google, I have not heard of these.
I read up on them, I have a feeling they may be just another gadget for the cupboard, that cupboard you need to slam really quickly because all the gadgets fall out.
Clair, it's just a gadget. If you peel, chop and freeze bananas before you go to bed, in the morning throw one in a blender with some juice/milk and other fruit, you'll have a delicious thick smoothie.
