That’s a Banana Guard of course !!
If your fed up with your banana getting bruised and black this is just the bit of kit you want.
 As quoted from there site….
Q: “Not all bananas are the same size or shape, so how can the Banana Guard fit them all?”
A: The Banana Guard was specially designed to accommodate the majority of banana sizes. Our testing indicates that over 90% of commercially available bananas will fit into the Banana Guard. Highly curved bananas can be straightened ever-so-slightly without harm to fit the Banana Guard shape. The opposite holds true of very straight bananas.
They even do a glow in the dark one……..
