Harrows Flights Feathers Harrows Darts Flights from Supergrip Ultra Gold 3503 Harrows Darts 3503 €1.00 Brand name Harrows. The model is Supergrip Ultra. Format: standard. What is it. Reference is 3503. . . . The product consists of 1 set of 3 Harrows Supergrip Ultra Gold pens Add to cart