These golf ball markers are made of high quality ABS plastic, which is durable and lightweight. The funny design of these golf ball markers makes them a great gift for golfers, whether they are beginners or pros. The markers are 1.57 inches in diameter, which is the standard size for golf ball markers, and they come in a pack of 6, so you have plenty of markers to use on the course. The markers are easy to use and can be easily spotted on the green, making it easier for you to keep track of your ball position. Whether you are playing a round of golf with friends or competing in a tournament, these golf ball markers are a must-have accessory.