A bowling ball is a heavy, spherical object used in the sport of bowling. It is typically made of a hard plastic or resin material and comes in various weights, usually ranging from 6 to 16 pounds. The ball has three holes drilled into it for the fingers, allowing bowlers to grip and control the ball during their throw. Bowling balls are designed to roll down a bowling lane and knock down a set of ten pins arranged in a triangular formation. The surface of the ball can be smooth or textured, affecting its grip and movement on the lane. Different types of bowling balls are available for various styles of play.