Sold individually. Pendulums are a divination device. They are made from all natural crystal and they come in a little metal chain. Divination is the art of connecting or receiving messages from spirit. The way that these work is you hold one and ask what yes is and what no is. Then you can ask as many questions as you like. If you like tarot or Ouija, you may enjoy a pendulum. There's simple in anyone can use them.
I have labradorite, a stone of intuition. (These each have a little bit of flash in them.)
Black tourmaline, a stone of protection and removal of negative energy.
The purple ones are lepidolite which is a calming soothing stone.
Yellow adventurine which is a pretty gemmy stone of luck and prosperity.
NEW rare Green Apatite. A stone of manifesting, past life connections and abundance