These boxes are constructed from hardwood and feature an A4 tuning fork mounted directly to the box. If tuned to the same frequency, striking one will cause the other to go into sympathetic vibration.
- 1x Hardwood resonance box with a 256 Hz A4 tuning fork
- 1x Hardwood resonance box with an adjustable tuning fork
See the Buying Guide for this item's required, recommended, and additional accessories.