This pouch contains 3 healing crystal balls. Opale crystal is for promoting long life and purifying the blood and kidneys. Sphene crystal aids mental ability and accelerates your learning. Columbite crystal boosts creativity and decision making. Each one of these beautiful crystals has their own unique properties and can be held in your hands during meditation, carried in your bag on your travels, or placed around the house or place of work.. Approx size is 20-24mm