The term 'curling targets' refers to the tees, which are four-letter targets used in the sport of curling. Curling is a sport that involves two teams of four players who slide stones across a sheet of ice towards a target area. The tees are the four-letter targets that the stones must reach in order to score points. The tees are usually made of plastic or rubber and are placed at the end of the sheet of ice. The goal of the game is for each team to get their stones closer to the tee than their opponents.