This helps stimulate blood flow. There are 10 1000 gauss-ferrite magnets that have unique alternating arrays around the neck. Your stiff shoulders and neck will be relieved. Tired eyes as a result of working on computers and at desk for a long time could lead to stiff shoulders and stiffness in the neck. This neck type helps soothe migraines and tired eyes by stimulating blood flow. You just need to wear it. Can be used anytime and convienent hook can be used to have your cell phone or keys. You can even wear it at work to hang your ID card, and relieve neck tension at the same time.