Egyptian wrist defender. Can't say but looks like Cleopatra would have worn it if Chanel existed back then. Probably for a forearm ... maybe a skinny bicep.
Chanel - Wrist Armor (top right)
$2,000.00Price
All packages will be sent either UPS or FedEx, with insurance paid
Limited. Its well cared for second hand stuff. If you can't really afford it, don't buy it.