Set of 4 Tumbled Crystals  for Protection
Black Tourmaline, Clear Quartz, Smoky Quartz, Snowflake Obsidian
Crystals are natural and therefore there will be slight variations in size and color. 

The crystals are well proportioned to be placed on the individual's chakra space during activation, balancing, or clearing or to be carried on your person for protection throughout the day. 
While your crystals will be cleansed and charged before you receive them, it is best to routinely cleanse your crystals, in running water, raw salt, smoke, or fire.
Black Tourmaline - a powerful stone for protection against negative energy of all kinds. It also encourages positive attitudes, good luck, and happiness, regardless of the circumstances that you find yourself in. also helps you to let go of negativity and self-doubts or any feelings of anxiety or negativity of any kind.
Clear Quartz - is protective against negative energy and will transmute it to positive energy. Known as a Master Healer, it amplifies any crystals you are working with and helps balance and align all chakras
Smoky Quartz- powerful ability to protect and ground one physically and spiritually to this world, and to absorb and transmute significant amounts of negative energy and release it into the Earth to be neutralized naturally. It provides a vital shield against psychic attacks, and emotional and environmental stress, and is used extensively in healing and meditation.
Snowflake Obsidian - Very helpful in protecting against physical, emotional, and mental attacks. Helps draw emotions to the surface to examine and release them. Helps remove negativity from the aura or physical space. Heals and releases energy blockages