The term GOLF BAG OBJECT can be solved by the 4-letter word IRON. An IRON is a type of golf club used to hit the ball in the game of golf. It is one of the most commonly used clubs and is typically used for shots that require more power and distance than a wedge. Irons are usually made of metal and have a flat face, which helps to create a more consistent shot. They are usually stored in a golf bag along with other clubs.