Grape peelers are a tool for peeling grapes.
The classic model is a half-moon shaped blade about 2 to 3 cm (about 1 inch) long, that looks like a scythe. It’s attached to a straight plastic handle about 12 cm (4 1/2 inches) long.
Another, more modern, design is a small hoop of thin wire. You insert the wire between the skin and the flesh on the grape, and then rotate the grape. This causes the wire to separate the skin from the flesh all around the grape. Then you pinch the skin, and then with the peeler pull out the grape, which will be in the wire hoop.
Victorians popularized grape peelers; theirs were made of silver.