Strike this tuning fork against its accompanying clear quartz crystal, and it emits a steady tone of 4,096 hertz—that’s four octaves above middle C, if you were wondering—as it vibrates. We’re taking notes from Marie Kondo herself, who suggests playing the tuning fork after tidying your space to cultivate a sense of cleared energy. 

• Aluminum alloy and clear quartz
• Tuning fork: 3.9" x 1"; Crystal: 3.3" x 1"