The use of bells as a channel for positive energy dates back to antiquity. Across cultures, continents and religions, bells have been rung to banish evil spirits. It is considered good karma to have a bell on your door, which acts as a beacon for welcome news and prevents bad energy from entering. Many motorcycle riders and car enthusiasts attach bells to ward off mishaps and mechanical failures. You can grant this tradition of protection to anyone. Attach a Guardian® Bell to a backpack, keychain, boat, locker or anyplace else.