Pendulums are divination tools, used to answer yes/no questions to assist in providing direction.  They work by responding to your subconscious mind.
 
Scolecite
Associated with Crown Chakra
Used to help connect with Higher Spirit and Archangel Gabriel for divine inspiration, wisdom & healing.  Especially helpful for inner peace, emotional stability.
 
This listing is for 1 pendulum intuitively chosen by me.