As someone who ski paddles a lot, and having just hit 50, I've started having anterior or front shoulder pain, all due to bad posture and overuse. This simple but clever device can be worn while driving, on the computer, watching TV, in fact almost anytime you are doing something else, and it's a constant reminder to hold your shoulders back. It obviously won't do all the work for you, it's more a reminder, but in only a few days my pain has eased off, and I'm seeking this thing out when doing routine things. Was looming for some sort of strap to hold my shoulders back and work on my posture, and this gadget is perfect. Very happy user here.