The minimum allowed diameter of a golf ball is 42.67 mm and its mass may not exceed 45.93 g. Modern golf balls have a two-, three-, or four-layer design constructed from various synthetic materials. The surface usually has a pattern of 300-450 dimples designed to improve the ball's aerodynamics by reducing the ball's drag-inducing wake and allowing spin on the ball to create lift. The method of construction and materials used greatly affect the ball's playing characteristics such as distance, trajectory, spin and feel. Harder materials, such as Surlyn, usually result in the ball's traveling longer distances, while softer covers, such as urethane, tend to generate higher spin, more "feel" and greater stopping potential. Golf balls are separated into three groups depending on their construction: two-, three-, or four-piece covers. Generally four-piece golf balls tend to be the most expensive, though price is no assurance of quality.

Travel bags are available with many combinations of size and features, but are distinguished by rigid and/or heavily padded construction, including the clubhead cover (which on most other bags is simply an unpadded "rain fly"), and locks on the zippers and bag cover. These features protect the clubs from abuse and theft, and generally makes the bag suitable for checked airline luggage. Travel bags are generally used by amateur players that travel occasionally, such as business executives; rigid flight cases that enclose the actual golf bag are generally preferred by touring players, as these cases can enclose any golf bag, are more discreet as to their contents thus further deterring theft, and the case's weight and bulk can be left behind while on the course where it's not needed.

With titanium and carbon fiber among the materials of choice, golf can be an expensive hobby. Fortunately, with the great selection of new and used equipment at eBay’s golf store, you can find the golf gear you need without breaking the bank. Whether you’re looking for range balls for practice, hybrid clubs or the latest high-tech driver, eBay has golf gear for everyone.
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