Ex.
http://www.doversaddlery.com/roma-ma...-04989/cn/119/
http://www.doversaddlery.com/product.asp?pn=X1-24321
They claim to help circulation and reduce pain. Has anyone ever used these? Or know how they work? Are they worth the money?
Maybe it'd just be cheaper to attach a bunch of kitchen magnets onto a flysheet, lol..