Oil Bottle Pendant - Great for oils, ashes, (my friend has some of dogs ashes in it), you can also add small crystal stones.  Removable roll ball so that you can add your contents. 
 
The top is made of sterling silver, the stone is an amethyst. 
The black leather necklace is included.  
It measures from top to bottom 2 inches x 5/8 ( 51.75mm x 15.88mm)