I designed And handmade this rollerball necklace. It can be used with essential oils, cbd oil, you can just remove the ball. Or anything else that you might think off. It is genuine sterling silver, turquoise and Lapis. This piece is completely hand made. The pendant measures 2 inches tall and 3/4 inches wide. The chain is sterling silver as well and is 20 inches long. They say there is many healing qualities in turquoise and Lapis stones.