The Snitch
The Keeper’s function is to keep the other team’s Chasers from getting the Quaffle through a hoop. The Seeker, who is usually the smallest and fastest player on the team, flies all over the pitch, trying to spot and then catch the tiny Golden Snitch, which is “… about the size of a large walnut.” The Golden Snitch has little wings, which enable it to hurtle around incredibly quickly. Both its speed and its tiny size make the Golden Snitch nearly impossible to see.