It is a hard foam exercise roller about 3 feet long used by many professional athletes to massage and stretch the muscles.

Rolling this pole over the muscles can delay muscle soreness post-workout, reduce back pain, soften the stiff shoulder muscles, relieve tension in the erector spine muscles, and expand the range of motion, improves thoracic mobility, relaxes the body, and much, much more!

I highly recommend getting one if you want to improve your performance, not just for athletic performances, but feel good about your body.