The GoFit Polar Roller targets soreness and minor aches associated with sports, exercise, and weight training. The Polar Roller is ideal total body relief. You decide how much pressure you want to apply to your trigger-point areas for maximum relief. After freezing the stainless roller ball, it stays cold longer than ice, and doesn’t melt so you can roll-out muscle soreness with no wet mess. From your neck to your feet, simply press and roll.