Wrist armor with elastic opening and padded lining.  Easy and comfortable to wear for any occasion!  The Accretion model has one side-facing LED.
 
A switch on the rim controls the LEDs, and the coin cell battery can be replaced by unscrewing an acrylic panel.  Each SplitBand model half is self-contained and cross-compatible.
 
Accretion's diagonal cut is now closed at the edges for quality/alignment reasons - some photos show the old version.  The color shade of the lining fabric may vary slightly from the medium shades displayed.