This is part of my polysling that I don't have to wear any more. It attached around my back from my elbow to my wrist. Combined with the traditional over-shoulder sling strap, this completely immobilised my upper arm, and hence my shoulder. After 43 days I'm finally free of it!
Arctic wolf, electronics engineer, northerner working in the south, snow lover, UMIST graduate, cook, web furcode interface host and more, all at the same time.