This bracelet is made of Onyx and Green Howlite 8mm and nylon thread. Black Onyx is a semi-precious stone, it purifies karma, helps to overcome acts and consequences of the past. Provides stability, reinforcement, self-confidence and protection. The Howlite is a stone that calms the mind, it can be used to help fall asleep. It promotes the digestion and fortification of bones and teeth. It alleviates hypersensitivity and depression, promotes discernment and strengthens character. The Howlite helps to clarify feelings.