The Fortress Excercise Equipment range are leaders in the fitness industry for providing high quality fitness and exercise equipment. The Fortress Rubber Trigger Point Massage Balls (also known as Lacrosse Balls) are available in 8 different colours. These are a simple ‘go to’ massage ball for use in your hands and on your feet. Great for relieving tension, pressure and sore spots. You can take these anywhere as they are lightweight but firm, and only 6 cms in diameter.