Don, that is a compression bandage. Be careful with this, and if you feel any numbness or tingling sensation below the bandage, call the nurse immediately and have it loosened a bit until those feelings go away. This is very, very important!

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)