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golf ball 
Small ball used for playing golf that is about 42 cm in diameter and weighs no more than 45.93 g.
tee
Small wood or plastic base; the ball is hit from it at the start of a hole.
dimple
Small cavity in the ball’s cover that stabilizes the ball’s trajectory in flight.
cover
Outer part of the ball that is pitted with dimples.
cross section of a golf ball
core
Middle part of the ball that can be solid (usually rubber) or liquid (usually water).
rubber thread
Band that covers the core; it increases the bouncing ability of the ball and its hitting distance.
cover
Outer part of the ball that is pitted with dimples.
