Many golfers carry a ball marker and a divot tool with them during their round of golf. Although you can carry these two important items separately, it's also possible to purchase one device that features both tools. Carrying this style of accessory is handy because it contains the two elements you need upon reaching the green.
Using a ball marker to mark your ball on the green is an important element of golf etiquette. If your ball sits between another player's ball and the hole, mark it with a ball marker or other small item. Once the other player has taken her turn, replace your ball to the spot held by the marker.
A divot tool is a fork-like implement that allows you to repair divots caused by your ball on the green. When the green is soft and your ball lands on it at a steep angle, it creates a dent. Stick the forks of the divot tool into the green around the indentation and lift it slightly. Once you've raised the divot so it's level with the rest of the green, pat it down with the sole of your putter.
Divot tools that hold a ball marker are a common golf accessory. By combining these two items, manufacturers provide you with only one item to carry. These combination tools are often made of metal. The divot tool usually has a circular indentation containing a magnet that allows the ball marker to stick to it. Other tools have a clip to hold the marker.
Some combination ball marker/divot tools feature a clip on the back of the device to allow you to carry it easily. If you don't like items in your pockets while golfing, this style of tool is ideal. Many golfers clip it to the outside of their hip pocket, the front of their shirt between two buttons or even the brim of their cap. This way, both items are always within reach when you need them.