Inventory consists of the following as of:
 
 
 
December 31
 
 
 
2015
 
2014
 
 
 
 
 
 
 
Raw materials
 
$
422,115
 
$
331,879
 
Work in process
 
 
—
 
 
—
 
Finished goods
 
 
232,098
 
 
274,334
 
 
 
$
654,213
 
$
606,213