PD4 This is a clear curved plastic display stand for slabs. It measures 3 7/8″ wide.  The total height from the base to the top edge of the stand is 3 1/2″.

Shown holding a Petrified Wood slab, the slab measures 5 1/2″ wide x almost 5″ tall x 7/8″ thick. (Petrified Wood not included)