The "Banana Split" is a Scandinavian-made device for opening bananas. It appears to function in a way similar to a bottle opener with the addition of little teeth for better grip. Notice the tag line is "You will like it" and indeed I do.
Whilst it's possible that a very unripe banana in the hands of an elderly or infirm person may be a tad difficult to peel, it's curious to me why a knife wouldn't be more effective. You may be interested to know that the gadget is fully recyclable and costs 29.95 Danish Kroner (about US$5.50).
The serving suggestion on the packaging is particularly impressive