Colorful Golf Balls are easy to spot in any terrain, you never have to worry about losing them. These training golf balls are made of environmentally friendly plastic, non-toxic, hard and durable, will not crack and break easily. Each hollow golf all guarantees that the true spin and accurate distance of regular size golf balls. They are designed with symmetrical scalloped holes to ensure that you will get efficient and accurate practice. Perfect using in office, indoor simulators, backyards and golf range practice.